Prof. Kiyotoshi YASUMOTO

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Qualifications :

Dr. of Engineering (Kyushu University)

 

Affiliated to :

Department of Computer Science and Communication Engineering,

Graduate School of Information Science and Elecrical Engineering

 

Lectures offered :

Radiowave Engineering I (Undergraduates)

Electromagnetic wave circuits (Undergraduates)

Advanced information transmission theory (Graduates)

Optical Communication Systems (Graduates)

 

Introduction of Research and Laboratory :

Go to Laboratory Members

 

Member of :

Fellow of Optical Society of America

Fellow of Institute of Electronics, Information and Communication Engineers

Fellow of Chinese Institute of Electronics

Fellow of the Electromagnetics Academy at MIT

IEEE, Senior Member (APS, MTTS, LEOS)

The Institute of Electrical Engineers of Japan

Applied Computational Electromagnetics Society

 

Address :

Department of Computer Science and Communication Engineering,

Graduate School of Information Science and Elecrical Engineering,

Kyushu University

744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan

TEL: 92-802-3632

FAX: 92-802-3630

E-mail: yasumoto@csce.kyushu-u.ac.jp

List of Publications

Book: Edited Volumes and Book Chapters

1.       K. Yasumoto, Ed., Electromagnetic Theory and Applications for Photonic Crystals, CRC Press, Taylor & Francis, New York,  2005

2.       K. Yasumoto and H. Jia, “Modeling of Photonic Crystals by Layered Periodic Arrays of Cylinders,” in Electromagnetic Theory and Applications for Photonic Crystals (Ed. K. Yasumoto), CRC Press, Taylor & Francis,  New York,. pp.123-190, 2005

3.       H. Jia and K. Yasumoto, “Mode-Matching Technique Applied to Metallic Photonic Crystals,”  in Electromagnetic Theory and Applications for Photonic Crystals (Ed. K. Yasumoto), CRC Press, Taylor & Francis New York, pp. 225-294, 2005

 

Peer-Reviewed Journal Articles

Published

1.            F. Y. M. Chan and K. Yasumoto, “Design of wavelength tunable long-period grating couplers based on asymmetric nonlinear dual-core fibers,” Optics Letters, vol. 32, no. 23, pp. 3376-3378, Dec. 2007.

2.            V. Yachin and K. Yasumoto, “Method of integral functionals for electromagnetic wave scattering from a double-periodic magnetodielectric layer,” Journal of Optical Society of America A, vol. 24, no. 11, pp.3606-3617, November 2007.

3.            V. Jandieri, K. Yasumoto, and H. Toyama, “Radiation from a line source placed in two-dimensional photonic crystals,” International Journal of Infrared and Millimeter Waves,  vol. 28, no. 12, pp. 1161-1173, Dec. 2007

4.            K. Watanabe and K. Yasumoto, “Two-dimensional electromagnetic scattering of non-plane incident waves by periodic structures,” Progress In Electromagnetics Research, vol. PIER 74, pp. 241-271, 2007.

5.            F. Bogdanov, G. Kevanishvili, G. Jandieri, K. Yasumoto, and D. I. Kim, “Analysis and design of multiport waveguide junctions with artificial inclusions formed of conducting strips,” International Journal of Infrared and Millimeter Waves, vol. 27, no. 2, pp.1347-1364, 2006.

6.            H. Jia and K. Yasumoto, “Analysis of two-dimensional electromagnetic scattering from photonic crystals with　periodic defects,” International Journal of Microwave and Optical Technology, vol.1, no.2, pp.672-678, Aug. 2006.

7.            T. Miyamoto, M. Momoda, and K. Yasumoto, “Behavior of reflected powers of radiation field in shorter wavelength region in various kinds of 3-D optical waveguides with periodic structure,” International Journal of Microwave and Optical Technology, vol. 1, no. 2, pp. 633-638, Aug. 2006.

8.            F. G. Bogdanov, G. Sh. Kevanishvili, G. V. Jandieri, and K. Yasumoto, “Optimization Strategy for Multiport Waveguide Junctions with canonical types of artificial discontinuities,” International Journal of Microwave and Optical Technology, vol. 1, no. 2, pp. 259-266, Aug. 2006.

9.            H. Jia and K. Yasumoto, “Full wave analysis of multilayered metallic slabs cut periodically by rectangular holes,” International Journal of Microwave and Optical Technology, vol. 1, no. 2, pp.679-685, Aug. 2006.

10.        K. Yasumoto, H. Jia, and B. Gupta, “Electromagnetic bndgap structures formed by circular posts of magnetized ferrite in rectangular waveguide,” International Journal of Microwave and Optical Technology, vol. 1, no. 1, pp. 75-81, June 2006.

11.        D. Zhang, H. Jia, and K. Yasumoto, “Analysis of coupling between conventional dielectric waveguides and photonic crystal waveguide using Fourier series expansion method with perfectly matched layer,” International Journal of Microwave and Optical Technology, vol. 1, no. 2, pp. 666-671, Aug. 2006.

12.         H. Jia and K. Yasumoto, “Two-dimensional analysis of guided modes in a metallic electromagnetic crystal waveguide,” IEICE Trans. Electronics, vol. E69-C, no. 9, pp. 1291-1298, Sep. 2006.

13.        K. Yasumoto, N. Koike, H. Jia, and B. Gupta, “Analysis of electromagnetic bandgap based filters in a rectangular waveguide,” IEICE Trans. Electronics, vol. E69-C, no. 9, pp. 1324-1329, Sep. 2006.

14.        V. Jandieri, K. Yasumoto, and H. Jia, "Effect of periodic defects on electromagnetic scattering by the two-dimensional photonic crystals," International Journal of Infrared and Millimeter Waves, vol. 27, no. 2, pp. 301-317, Feb. 2006.

15.        H. Jia and K. Yasumoto, "Modal analysis of two-dimensional photonic crystal waveguides formed by rectangular cylinders using an improved Fourier series method," IEEE Trans. Microwave Theory Techn., vol. 54, no. 2, pp. 564-571, Feb. 2006.

16.        H. Jia and K. Yasumoto, "Rigorous analysis of photonic crystals with periodic defects," Microwave and Optical Technology Letters, vol. 47, no. 3, pp. 256-261, Nov. 2005.

17.         H. Jia and K. Yasumoto, "Rigorous analysis of guided modes of two-dimensional metallic electromagnetic crystal waveguides," Journal of Electromagnetic Waves and Applications, vol. 19, no. 14, pp.1919-1933, 2005.

18.        H. Jia and K. Yasumoto, "Rigorous mode analysis of coupled cavity waveguides in two-dimensional photonic crystals," International Journal of Infrared and Millimeter Waves, vol. 26, no. 9, pp.1291-1306, Sep. 2005.

19.        K. Yasumoto, H. Jia, and H. Toyama, "Analysis of two-dimensional electromagnetic crystals consisting of multilayered periodic arrays of circular cylinders," Electronics and Communications in Japan, Part II: Electronics, vol.88, no.9, pp.19-28, Sep. 2005.

20.        K. Yasumoto, H. Jia, and K. Sun, "Rigorous analysis of two-dimensional photonic crystal waveguides," Radio Science, vol. 40, no. 6, RS6S02 (pp.1-7), Sep. 2005.

21.        Y. Pan, S. Xu, and K. Yasumoto, "Analysis of loss and dispersion characteristics for groove guides with arbitrary groove profiles by an equivalent active transmission line method," International Journal of Infrared and Millimeter Waves, vol. 26, no. 2, pp. 189-200, Feb. 2005.

22.        Y. Lin, S. Xu, and K. Yasumoto, "Mode matching analysis of propagation characteristics for dielectric ridge guide with triangular and trapezoidal profiles," International Journal of Infrared and Millimeter Waves, vol. 26, no. 2, pp. 173-188, Feb. 2005.

23.        Juan-Yang, Le-Wei Li, K. Yasumoto, and Chang-Hong Liang, "Two-Dimensional Scattering of a Gaussian Beam by a Periodic Array of Circular Cylinders," IEEE Trans. Geoscience and Remote Sensing, vol. 43, no. 2, pp. 280-285, Feb. 2005.

24.        H. Jia, K. Yasumoto, H. Toyama, “Reflection and transmission properties of layered periodic arrays of circular cylinders embedded in magnetized ferrite slab,” IEEE Trans. Antennas Propag., vol. 53, no. 3, pp. 1145-1153, March, 2005.

25.        H. Jia, D. Zhang, and K. Yasumoto, “First analysis of optical waveguides using an improved Fourier series method with perfectly matched layer,”  Microwave and Optical Technology Letters, vol. 46, no. 3, pp. 263-268, Aug. 2005. 

26.        H. Jia and K. Yasumoto, “Scattering and absorption chatacteristics of multilayered gratings embedded in a dielectric slab,” International Journal of Infrared and Millimeter Waves, vol. 26, no. 8, pp. 1111-1126, Aug. 2005.

27.        H. Jia and K. Yasumoto, “Rigorous mode analysis of coupled cavity waveguides in two-dimensional photonic crystals,” International Journal of Infrared and Millimeter Waves, vol. 26, no. 9, pp. 1291-1306, Sept. 2005.

28.        H. Toyama and K. Yasumoto, “Electromagnetic scattering from periodic arrays of composite circular cylinder with internal cylindrical scatterers,” Progress In Electromagnetics Research, vol. PIER 52, pp. 321-333, 2005.

29.        K. Yasumoto, H. Jia, and H. Toyama, "Analysis of two-dimensional photonic crystals composed of multilayered arrays of circular cylinders," IEICE Trans. Electronics, vol. J88-C, no. 3, pp. 135-143, 2005.

30.        V. Jandieri and K. Yasumoto, "Diffraction of plane waves by multielements grating of the circular cylinders," IEEJ Trans. Fundamental and Materials, vol. 124, no. 12, pp. 1148-1153, Dec. 2004.

31.        H. Jia and K. Yasumoto, “A novel formulation of the Fourier modal method in S-matrix form for arbitrary shaped gratings,” International Journal of Infrared and Millimeter Waves, vol. 25, No. 11, pp. 1591-1609, 2004.

32.        K. Yasumoto, H. Jia, and H. Toyama, "Electromagnetic scattering by multilayered periodic arrays of circular cylinders," IEEJ Trans. Fundamental and Materials, vol. 124, no. 12, pp. 1141-1147, Dec. 2004.

33.        M. Momoda, T. Miyamoto, and K. Yasumoto, “Flattered wavelength response in fundamental guided modes in a channel waveguide with lamellar gratings,” IEICE Trans. Electronics, vol. 65C-E, no. 11, pp. 650-654, 2004.

34.        H. Jia, K. Yasumoto, and K. Yoshitomi, “Analysis of rectangular-groove waveguide using the Fourier transform technique,” Microwave and Optical Technology Letters, vol. 41, no. 5, pp. 388-392, 2004.

35.        H. Jia, K. Yasumoto, and K. Yoshitomi, “Analysis of rectangular-groove waveguide using the Fourier transform technique,” Microwave and Optical Technology Letters, vol. 41, no. 5, pp. 388-392, 2004.

36.        H. Jia, K. Yasumoto, and K. Yoshitomi, “Analysis of rectangular-groove waveguide using the Fourier transform technique,” Microwave and Optical Technology Letters, vol. 41, no. 5, pp. 388-392, 2004.

37.        K. Yasumoto, H. Toyama, and T. Kushta, “Accurate analysis of two-dimensional electromagnetic scattering from multilayered periodic arrays of circular cylinders using lattice sums technique,” IEEE Trans. Antennas Propagat., vol.52, no.10, pp.2603-2611, Oct. 2004.

38.        H. Jia and K. Yasumoto, “S-matrix solution of electromagnetic scattering from periodic arrays of metallic cylinders with arbitrary cross section,” IEEE Antennas and Wireless Propagation Letters. vol. 3, pp. 41-44, Issue3, 2004.

39.        H. Jia, K. Yoshitomi, and K. Yasumoto, “Rigorous and fast convergent analysis of a rectangular waveguide coupler slotted in common wall,” Progress In Electromagnetics Research, vol. PIER 46, pp. 245- 264, 2004.

40.        M. Momoda, T. Miyamoto, and K. Yasumoto, “Numerical analysis of a fiber connected to an inhomogeneous embedded waveguide with rectangular cross-section,” Microwave and Optical Technology Letters, vol. 40, no. 1, pp.14-18, 2004

41.         M. Momoda, T. Miyamoto, and K. Yasumoto, “Numerical analysis of lamellar grating type three-dimensional optical waveguide with periodic structure, using Fourier series expansion method,” IEEJ Tans. Fundamentals and Materials, vol. 123, no.12, pp. 1151-1158, 2003.

42.        H. Toyama, T. Iwasaki, and K. Yasumoto, “Electromagnetic scattering from a dielectric cylinder with multiple eccentric cylindrical inclusions,” Progress In Electromagnetics Research, vol. PIER 40, pp. 113-129, 2003.

43.        T. Miyamoto, M. Momoda, and K. Yasumoto, “Numerical analysis for 3- dimensional optical waveguides with periodic structures using Fourier series expansion method,” IEICE Trans. on Electronics, vol. J86-C, no. 6, pp. 591-600, June 2003.

44.        K. Yasumoto, K. Watanabe, and J. Ishihara, “Numerical analysis of optical waveguides with the use of Fourier series expansion method combined with perfectly matched layer,” Microwave and Optical Technology Letters, vol. 34, no. 6, pp. 422-426, 2002.

45.        T. Miyamoto, M. Momoda, and K. Yasumoto, “Full-vectorial analysis of connection problem in optical fiber,” Trans. IEE of Japan, vol. 122-A, no. 1, pp. 39-46, Jan. 2002.

46.        H. Jia, K. Yasumoto, and K. Yoshitomi, “Fast and efficient analysis of inset dielectric waveguide using Fourier transform technique with a modified perfectly matched boundary,” Progress In Electromagnetics Research, vol. PIER 34, pp.143- 163, 2001.

47.        T. Kushta, K. Yasumoto, and V. K. Kiseliov, "Extinction and scattering of a guided beam in a hollow dielectric waveguide," J. Opt. Soc. Am. A, vol. 18, no. 7, pp.1690-1695, July 2001.

48.        S. Visnovsky and K. Yasumoto, "Multilayer anisotropic bi-periodic diffraction grating," Czech. J. Physics, vol.51, no.3, pp.229-247, 2001.

49.        T. Kushta and K. Yasumoto, "Electromagnetic scattering from periodic arrays of two circular cylinders per unit cell," Progress In Electromagnetics Research, vol. PIER 29, pp.69-85, 2000.

50.        K. Watanabe and K. Yasumoto, "Coupled-mode analysis of coupled microstrip transmission lines using a  singular perturbation technique," Proggress In Electromagnetics Research, vol. PIER 25, pp.95-110, 2000.

51.        K. Watanabe, J. Ishihara, and K. Yasumoto, "Coupled-mode analysis of a grating-assisted directional coupler using singular perturbation technique," Progress In Electromagnetics Research, vol. PIER 25, pp.23-37, 2000.

52.        K. Yasumoto and T. Kushta, "Efficient analysis of scattering by periodic arrays of gyrotropic cylinders," Electromagnetic Waves and Electronic Systems, vol.5, no.1, pp.66-74, 2000.

53.        K. Watanabe and K. Yasumoto, "Coupled-mode analysis of an NRD-guide coupler based on singular perturbation technique," International Journal of Infrared and Millimeter Waves, vol.20, no.12, pp.2163-2174, 1999.

54.        M. Matsunaga, M. Katayama, and K. Yasumoto,, "Coupled-mode analysis of line parameters of coupled microstrip lines," Progress In Electromagnetics Research, vol.PIER-24, pp.1-18, 1999.

55.        S. Xu, J. Liu, K. Yasumoto, and K. S. Chiang, “The effect of radiation on transmission of quasi-periodic multi-layer planar dielectric gratings,” International Journal of Infrared and Millimeter Waves, vol.20, no.4, pp.681-698, 1999.

56.        H. Jia, K. Yoshitomi, and K. Yasumoto, "Rigorous analysis of E-/H-plane junctions in rectangular waveguides using Fourier transform technique," Progress In Electromagnetics Research, vol.PIER-21, pp.273-292, 1999.

57.        K. Yasumoto, T. Miyamoto, and M. Momoda, "Full-wave analysis of optical waveguides using periodic boundary conditions," SPIE vol.3666, pp.170-176, 1999.

58.        K. Yasumoto and K. Yoshitomi, "Efficient calculation of lattice sums for free-space periodic Green's function," IEEE Trans. Antennas Propagat., vol.47, no.6, pp.1050-1055, 1999.

59.         K. K. Han and K. Yasumoto, "FVTD analysis of propagation of radio waves through modified T-junctions in two-dimensional tunnel," IEICE Trans. Commun., vol.E82-B, no.5, pp.780-784, 1999.

60.        B. S. Rawat, Y. Naciri, K. Yasumoto, H. W. Li, A. Sharaiha, and J. Le Bihan, "Analysis of an optically controlled nonlinear directional coupler," J. Opt. Commun., vol.20, no.5, pp.162-167, 1999.

61.        K. K. Han, K. Yasumoto, K. Uchida, and T. Matsunaga, "FVTD analysis of radiowave propagation in two-dimensional tunnels with arbitrary bending angles," IEICE Trans. Commun., vol.J81-B-II, no.8, pp.781-788, 1998.

62.        H. Jia, K. Yoshitomi, and K. Yasumoto, "Rigorous analysis of rectangular waveguide junctions by Fourier transform technique", Progress In Electromagnetics Research, vol. PIER 20, pp.261-280, 1998.

63.        X. B. Wu and K. Yasumoto, "Cylindrical vector-wave-function representations of fields in a biaxial Ω-medium," J. Electromagnetic Waves Appl., vol.11, no.11, pp.1407-1424, 1997.

64.        X. B. Wu and K. Yasumoto, "Three-dimensional scattering by an infinite homo- geneous anisotropic circular cylinder: An analytical solution", J. Appl. Phys., vol.82, no.5, pp.1996-2003, 1997.

65.        K. Yasumoto and M. Matsunaga, "Coupled-mode analysis of coupled multiple microstrip lines", IEICE Trans. Electron., vol.E80-C, no.2, pp.340-345, 1997.

66.        K. Watanabe and K. Yasumoto, "Coupled-mode analysis of wavelength filtering in a grating-assisted asymmetric three-waveguide directional coupler," J. Opt. Soc. Am. A, vol.14, no.11, pp.2294-3000, 1997.

67.        G. R. Kim, K. Uchida, and K. Yasumoto, "A study on the transmission efficiency of electromagnetic wave propagation in cross type tunnels in time domain," Journal of Korean Institute of Telematics and Electronics, vol. 34-D, no. 4, pp. 231-237, 1997.

68.        K. Yasumoto, "Coupled-mode formulation of multilayered and multiconductor transmission lines," IEEE Trans. Microwave Theory Tech., vol. 44, no. 4, pp. 585-590, 1996.

69.        K. Yasumoto, H. Maeda, and N. Maekawa, "Coupled-mode analysis of an asymmetric nonlinear directional coupler," J. Lightwave Technol., vol. 14, no. 4, pp. 628-633, 1996.

70.        K. Yasumoto, N. Mitsunaga, and H. Maeda, "Coupled-mode analysis of power- transfer characteristics in a three-waveguide nonlinear directional coupler," J. Opt. Soc. Am. B, vol. 13, no. 3, pp. 621-627, 1996.

71.        G. R. Kim, K. K. Han, T. Matsunaga, K. Uchida, and K. Yasumoto, "A study on the transmission efficiency of electromagnetic wave propagation in tunnels with bend and fold," Journal of Korean Institute of Telematics and Electronics, vol. 33-A, no. 12, pp. 25-32, 1996.

72.        K. Yasumoto, H. Maeda, and K. Nakamura, "Beam-propagation-method analysis of a three-waveguide nonlinear directional coupler," Microwave and Optical Technol. Lett., vol. 9, no. 6, pp. 319-323, 1995. 

73.        K. Yasumoto, N. Matsueda, and M. Ishii, "Coupled-mode analysis of polarization- splitting directional coupler," J. Opt. Soc. Am. A, vol. 11, no. 8, pp. 2249-2256, 1994.

74.        K. Yasumoto, N. Maekawa, and H. Maeda, "Coupled-mode analysis of a symmetric nonlinear directional coupler using a singular perturbation scheme," IEICE Trans. Electron., vol. E77-C, no. 11, pp. 1771-1775, 1994.

75.        K. Yasumoto, N. Shimoyama, and T. Hirata, "Analysis of optical directional coupler with nonparallel transition sections," Trans. IEICE, vol. J77-C-I, no. 11, pp. 686-694, 1994.

76.        K. Yasumoto and H. Maeda, "Numerical analysis of an asymmetric nonlinear directional coupler," Microwave and Optical Technology Letters, vol. 7, no. 13, pp. 627-632, 1994.

77.        H. Kubo and K. Yasumoto, "Numerical analysis of three-parallel embedded optical waveguides," Journal of Lightwave Technology, vol. 7, no. 12, pp. 1924-1931, 1989.

78.        H. Maeda and K. Yasumoto, "Numerical analysis of a symmetric nonlinear directional coupler," IEICE Trans. Electron., vol. E77-C, no. 2, pp. 298-302, 1994.

79.        K. Yasumoto, "Coupled-mode analysis of two-parallel circular dielectric waveguides using a singular perturbation technique," Journal of Lightwave Technology, vol. 12, no. 1, pp. 74-81, 1994.

80.        K. Yasumoto, "Coupled-mode formulation of parallel dielectric waveguides," Optics Letters, vol. 18, no. 7, pp. 503-504, 1993.

81.        S. Okita, T. Tanaka, K. Tanaka, and K. Yasumoto, "Numerical analysis of spontaneous emission and stimulated emission by a relativistic electron beam propagating parallel to a dielectric grating," Trans. IEICE, vol.J75-C-I, no.8, pp.515-522, 1992

82.        H. Kubo, K. Yasumoto, and T. Miyamoto, "Numerical analysis of three channel waveguides arranged two-dimensionally," IEICE Trans. Electron., vol.E75-C, no.3, pp.339-347, 1992.

83.        H. Kubo, K. Yasumoto, and K. Shigeta, "Numerical analysis of power divider using multiple waveguides," Trans. IEICE, vol.E-74, no.9, pp.2883-2889, 1991.

84.        K. Yasumoto, "Coupled-mode formulation of parallel dielectric waveguides using singular perturbation technique," Microwave and Optical Technology Letters., vol. 4, no. 11, pp. 486-491, 1991.

85.         H. Kubo and K. Yasumoto, "Numerical analysis of an optical coupler composed of three channel waveguides with different core sizes," Microwave and Optical Technology Letters, vol. 4, no. 5, pp. 181-184, 1991.

86.        H. Kubo and K. Yasumoto, "Numerical analysis of cylindrical dielectric waveguide with periodically varying radius," Trans. IEICE, vol.E-74, no.2, pp.384-390, 1991.

87.        K. Yasumoto and H. Kubo, "Numerical analysis of a cylindrical dielectric waveguide with a periodically varying circular cross section," Journal of Optical Society of America, A, Vol. 7, No. 11, pp. 2069-2074, 1990.

88.        K. Yasumoto, T. Tanaka, and T. Aramaki, "Numerical analysis of radiation by a relativistic electron beam propagating parallel to a reflection grating," IEEE Transactions on Plasma Science, vol. 18, no. 4, pp. 699-707, 1990.

89.        H. Kubo, K. Yasumoto, and Y. Itoh, "Numerical Analysis of a Multilayered Dielectric Waveguide with a Periodic Surface," Microwave and Optical Technol. Lett., vol.2, no.9, pp.317-319, 1989.

90.        T. Tanaka and K. Yasumoto, "Radiative leakage by a relativistic sheet electron beam propagating parallel to a sinusoidal grating under an externally applied magnetic field," Trans. IEICE, vol.J72-C-I, no.3, pp.145-151, 1989.

91.        T. Tanaka and K. Yasumoto, "Radiative leakage by a relativistic sheet electron beam propagating over a sinusoidal grating," Trans. IEICE, vol.J71-C, no.6, pp.906-913, 1988.

92.        H. Kubo and K. Yasumoto, "Numerical analysis of three-parallel thin-film waveguide," Trans. IEICE, vol. E71, no. 4, pp.327-329, 1988.

93.        K. Yasumoto and T. Tanaka, "Radiative leakage of space-charge waves by a modulated thin-sheet electron beam propagating parallel to a reflection grating," J. Appl. Phys., vol. 62, no. 9, pp.3543-3549, 1987.

94.        K. Yasumoto and M. Murayama, "A rigorous analysis of a thin-film dielectric waveguide with a sinusoidal surface corrugation," Radio Science, vol. 22, no. 6, pp. 1013-1017, 1987.

95.        K. Yasumoto, A. Hirashima, and T. Miyamoto, "Numerical analysis of two-parallel embedded optical waveguides," J. Opt. Soc. Am. A, vol. 4, no. 9, pp.1713-1719, 1987.

96.        T. Tanaka and K. Yasumoto, "Radiation by a relativistic sheet electron beam passing over a sinusoidal grating," Trans. IEICE, vol.E-70, no.4, pp.255-258, 1987.

97.        T. Tanaka and K. Yasumoto, "Cerenkov radiation from a relativistic electron beam propagating through a circular waveguide," Trans. IEICE, vol.J70-C, no.1, pp.40-48, 1987.

98.        K. Yasumoto, "Scattering and absorption of electromagnetic plane waves by a column of magnetized hot plasma," Trans. IEICE, vol.E-69, no.638-644, 1986.

99.        K. Yasumoto and K. Banfuku, "Characteristics of reflection of electromagnetic plane waves from a semi-bounded plasma with a diffuse scattering boundary," Radio Science, vol. 21, no. 1, pp. 167-174, 1986.

100.    K. Yasumoto, "Characteristics of three-wave interactions in a linear active system," Trans. IECE, vol.E-68, no.3, pp.147-153, 1985.

101.    K. Yasumoto, "Three-mode coupling in a dielectric slab waveguide with doubly periodic surface corrugations," J. Appl. Phys., vol.57, no.3, pp.755-759, 1985.

102.     K. Yasumoto and H. Shigematsu, "Analysis of propagation characteristics of radio waves in tunnels using a surface impedance approximation," Radio Science, vol. 19, no. 2, pp. 597-602, 1984.

103.    K. Yasumoto and Y. Oishi, "A new evaluation of the Goos-Hanchen shift and associated time delay," J. Appl. Phys., vol.54, no.5, pp.2170-2176, 1983.

104.    K. Yasumoto, "Radiation from a moving point charge in a drifting anisotropic plasma," Radio Science, Vol. 18, No. 2, pp. 207-215, 1983.

105.    K. Yasumoto, "Ray optics of guided TM waves in a slab of uniaxially anisotropic plasma," J. Appl. Phys., vol.53, no.5, pp.3890-3891, 1982.

106.    K. Yasumoto, "Analysis of the first-order Bragg interactions in an asymmetric dielectric-slab waveguide with a periodic surface corrugation," Trans. IECE, vol.J65-B, no.2, pp.261-262, 1982 (in Japanese).

107.    K. Yasumoto and T. Noguchi, "Electromagnetic decay into two surface plasma waves in a semi-infinite plasma," J. Appl. Phys., vol. 53, no. 1, pp. 208-214, 1982.

108.    K. Yasumoto and T. Noguchi, "Potential surface waves in a semi-infinite plasma," Trans. IECE, vol.J64-B, no. 9, pp. 1045-1046, 1981 (in Japanese).

109.    K. Yasumoto, "Electromagnetic decay into a surface plasma wave and an ion acoustic surface wave in a semi-infinite plasma," J. Appl. Phys., vol. 52, no. 5, pp. 3238-3244, 1981.

110.    K. Yasumoto, "On the polarization current and the moving dielectric models for a bounded cold plasma stream," Int. J.  Electron., vol. 42, no. 3, pp. 253-260, 1977.

111.    K. Yasumoto, "Radiation from a moving point charge in a drifting uniaxially anisotropic plasma," Int. J. Electron.，vol. 39, no. 2, pp. 237-240, 1975.

112.    K. Yasumoto, "Electromagnetic surface-wave interactions with a semi-infinite single stream of plasma," J. Appl. Phys.，vol. 46, no. 7, pp.2941-2945, 1975.

113.    K. Yasumoto, "On the transformation of cyclotron frequency in a moving magnetoplasma," Trans. IECE, vol. 58-B, no. 3, pp.127-128, 1975.

114.    K. Yasumoto, "Comment on the excitation of amplifying waves in a moving conductive medium," Trans. IECE, vol. 57-B, no. 6, pp. 407-408, 1974.

115.    K. Yasumoto, "Reflection and transmission of electromagnetic plane waves at a boundary moving to the normal direction," Trans. IECE, vol. 54-B, no. 12, pp. 781-788, 1971 (in Japanese).

116.    K. Yasumoto, "A study of the Chu and the Minkowski formulations by the model of  moving media,” Trans. IEICE, vol.54-B, no. 5, pp. 279-280, 1971 （in Japnese）.

Submitted

1.  F. Y. M. Chan and K. Yasumoto, “Analysis of metal-coated planar waveguide with corrugated long-period gratings,” Journal of Optical Society of America A, 2007.

Peer-Reviewed Articles in International Conference/Symposium

Published

1.   H. Jia, K. Yasumoto, and B. Gupta, “Emission Characteristics of a Line Source Covered by an Electromagnetic Crystal Embedded in a Magnetized Ferrite Slab,” Proceedings of the IEEE Applied Electromagnetics Conference, AEMC-EMM02,  Dec. 2007

2.　 K. Yasumoto and K. Watanabe, “Analysis of Discontinuities in Two-Dimensional Photonic Crystal Waveguides    Using Floquet Modes Concept,” Proceedings of International Symposium on Microwave and Optical Technology, pp. 253-256, Dec. 2007.

3.   F. Y. M. Chan and K. Yasumoto, “Design of switchable and wavelength tuneable Bragg-reflection filters based on grating-assisted nonlinear dual-core fibres,” Proceedings of the 5th Workshop on Fibers and Optical Passive Components, Paper No. TH2B-1, Dec. 2007.

4.          F. Y. M. Chan and K. Yasumoto, “Design of long-period grating couplers based on asymmetric dual-core   fibres,” Proceedings of International Conference on Electromagnetics in Advanced Applications, Paper No. 26-7, Sept. 2007.

5.          K. Yasumoto and H. Jia, “Dispersion characteristics of coupled cavity waveguides on two-dimensional photonic crystals,” Proceedings of International Conference on Electromagnetics in Advanced Applications, Paper No. 26-8, Sept. 2007.

6.          S. Chakraborty, B. Gupta, D. R. Poddar, and K. Yasumoto, “Reactive loading of dielectric rectangular waveguide antenna for better impedance matching,” Proceedings of 2007 International Symposium on Antennas and Propagation, pp. 394-397, Aug. 2007.

7.          P. Mukherjee, B. Gupta, and K. Yasumoto, “Element failure detection in antenna arrays using genetic algorithm,” Proceedings of 2007 International Symposium on Antennas and Propagation, pp. 330-333, Aug. 2007

8.         H. Jia and K. Yasumoto, “Radiation from a striate antenna located in photonic crystals,” Proceedings of 2007 International Symposium on Antennas and Propagation, pp. 1450-1453, Aug. 2007.

9.         D. Zhang, K. Yasumoto, H. Jia, “Analysis of microcavities on two-dimensional photonic crystals,” Proceedings of 2007 International Symposium on Antennas and Propagation, pp. 824-827, Aug. 2007.

10.     K. Yasumoto and T. Terasaka, “Analysis of circular waveguide periodically filled with magnetized ferrite,” Proceedings of Progress In Electromagnetics Research Symposium, p. 765, March 2007.

11.      F. Y. M. Chan and K. Yasumoto, “Analysis of metal-clad planar waveguide with corrugated long-period gratings,” Proceedings of Progress In Electromagnetics Research Symposium, p. 1699, March 2007.

12.     K. Yasumoto, H. Jia, and B. Gupta, “Analysis of radiation from a dipole source coupled to woodpile photonic crystals,” Proceedings of 2007 URSI International Symposium on Electromagnetic Theory, Paper No. EMTS74, July 2007.

13.      S. Chakraborty, U. K. Dey, S. Panda, B. Gupta and K. Yasumoto, “Parasitically loaded broad band microstrip antennas for proposed IEEE 802.15.3a (UWB) communication systems,” Proceedings of 2006 Asia Pacific Microwave Conference, vol. 3, pp. 1983-1986, Dec. 2006.

14.      H. Jia and K. Yasumoto, “Guiding modes of electromagnetic crystal waveguides consisting of magnetized ferrite,” Proceedings of 2006 Asia-Pacific Microwave Conference, pp. 869-872, Dec. 2006.

15.      K. Watanabe and K. Yasumoto, “Electromagnetic scattering of non-plane incident wave by surface-relief gratings,” Proceedings of Eighth International Conference on Optoelectronics, Fiber Optics and Photonics, p. 127, Dec. 2006.

16.     K. Yasumoto and H. Jia, “Rigorous analysis of coupled cavity waveguides consisting of two-dimensional photonic crystals,” Proceedings of Eighth International Conference on Optoelectronics, Fiber Optics and Photonics, p. 112, Dec. 2006.

17.     K. Yasumoto and H. Jia, and B. Gupta, “Radiation from a dipole source located in photonic crystals,” Proceedings of International Conference on Computers and Devices for Communications, pp. 81-84, Dec. 2006.

18.      H. Jia and K. Yasumoto, “Coupled cavity waveguides consisting of two- dimensional electromagnetic crystals formed by rectangular cylinders,” Proceedings of 2006 International Symposium on Antennas, Propagation and EM Theory, pp. 723-726, Oct. 2006.

19.      F. G. Bogdanov, K. Yasumoto, G. Sh. Kevanishvili, G. V. Jandieri, and G. V. Kekelia, “Rigorous Analysis of Multiport Waveguide Junctions with Diaphragms,” Proceedings of 2006 Joint 31st International Conference on Infrared and Millimeter Waves and 14-th International Conference on Terahertz Electronics, p. 538, Sept. 2006.

20.      H. Jia and K. Yasumoto, “Coupled cavity waveguides of photonic crystal consisting of magnetized ferrite medium,” Proceedings of 2006 Joint 31st International Conference on Infrared and Millimeter Waves and 14-th International Conference on Terahertz Electronics, p. 38, Sept. 2006.

21.      V. V. Yachin, K. Yasumoto, and S. Taguchi, “Electromagnetic scattering from doubly periodic rectangular gratings,” Proceedings of 2006 China-Japan Joint Microwave Conference, pp. 386-389, Aug. 2006.

22.      D. Zhang, H. Jia, and K. Yasumoto, “Optical propagation in photonic crystal waveguides beyond cutoffs,” Proceedings of 2006 China-Japan Joint Microwave Conference, pp. 66-69, Aug. 2006.

23.      H. Jia and K. Yasumoto, “Guiding modes of two-dimensional photonic crystal waveguides with a defect chain,” Proceedings of 2006 China-Japan Joint Microwave Conference, pp. 70-73, Aug. 2006.

24.      H. Jia and K. Yasumoto, “Mode analysis of coupled cavity waveguides consisting of dielectric rectangular-rods,” Proceedings of Progress In Electromagnetics Research Symposium, p. 345, Aug. 2006.

25.      K. Watanabe and K. Yasumoto, “Electromagnetic scattering by periodic array of circular cylinders with a defect,” Proceedings of the Seventeenth Asia-Pacific Microwave Conference, vol. 4, pp. 2345-2348, Dec. 2005.

26.      D. Zhang, H. Jia, and K. Yasumoto, “Numerical analysis of photonic crystal waveguide using Fourier series expansion method with perfectly matched layer,” Proceedings of the Seventeenth Asia-Pacific Microwave Conference, vol. 5, pp.  3124-3126, Dec. 2005.

27.      H. Jia and K. Yasumoto, “Analysis of coupled inset dielectric guides using a modified perfectly matched boundary,” Proceedings of the Seventeenth Asia-Pacific Microwave Conference, vol. 3, pp. 1454-1457, Dec. 2005.

28.      H. Jia and K. Yasumoto, “Mode analysis of coupled cavity waveguides in a two-dimensional metallic electromagnetic crystal,” Proceedings of the Seventeenth Asia-Pacific Microwave Conferenc, vol. 1, pp. 140-143, Dec. 2005.

29.      K. Yasumoto, N. Koike, and H. Jia, “Design of electromagnetic bandgap based filters in rectangular waveguide,” Proceedings of the Seventeenth Asia-Pacific Microwave Conference, vol. 1, pp. 174-177, Dec. 2005.

30.      V. Jandieri and K. Yasumoto, “Radiation from a line source in two-dimensional electromagnetic crystals,” Proceedings of the seventh International Symposium between Chungnam National University and Kyushu University, pp. 122—125, Sept. 2005.

31.      H. Jia and K. Yasumoto, “Scattering properties of two-dimensional electromagnetic crystals of circular cylinders coated by magnetized ferrite,” Proceedings of IEEE 2005 International Symposium on Microwave, Antenna, Propagation and EMC Technologies For Wireless Communications,vol.1, pp.610-613, Aug. 2005 .

32.      T. Miyamoto, M. Momoda, and K. Yasumoto, “Behavior of reflected powers of radiation field in shorter wavelength region in various kinds of three dimensional optical waveguides with periodic structure,” Proceedings of 10th International Symposium on　Microwave and Optical　Technology, pp. 331-334, Aug. 2005.

33.      D. Zhang, H. Jia, and K. Yasumoto, “Numerical analysis of coupling between conventional dielectric waveguide and photonic crystal waveguide using Fourier series expansion method with perfectly matched layer,” Proceedings of 10th International Symposium on　Microwave and Optical　Technology, pp. 279-282, Aug. 2005.

34.      F. G. Bogdanov, G. Sh. Kevanishvili, G. V. Jandieri, K. Yasumoto, “Optimization strategy for multiport waveguide junctions with canonical types of artificial discontinuities,” Proceedings of 10th International Symposium on Microwave and Optical Technology, pp. 625-628, Aug. 2005.

35.     V. Jandieri, K. Yasumoto, and H. Jia, “Effect of two-dimensional periodic defects in electromagnetic crystals embedded in a dielectric slab,” Proceedings of 10th International Symposium on Microwave and Optical Technology, pp. 787-290, Aug. 2005.

36.      H. Jia and K. Yasumoto, “Analysis of two-dimensional electromagnetic scattering from photonic crystals with periodic defects,” Proceedings of 10th International Symposium on　Microwave and Optical Technology, pp. 295-298, Aug. 2005.

37.      H. Jia and K. Yasumoto, “Full wave analysis of multilayered metallic slabs cut periodically by rectangular holes,” Proceedings of 10th International Symposium on　Microwave and Optical Technology, pp. 299-302, Aug. 2005.

38.      H. Jia and K. Yasumoto, “Two dimensional analysis of electromagnetic crystals waveguides consisting of perfectly conductive rectangular cylinders,” Proceedings of 2005 International Symposium on Antennas and Propagation, pp.475-478, Aug. 2005.

39.     V. Jandieri, K. Yasumoto, and H. Jia, “Electromagnetic scattering by a two dimensional electromagnetic crystals embedded in a dielectric slab with periodic defects,” Proceedings of 2005 International Symposium on Antennas and Propagation, pp. 471-474, Aug. 2005.

40.      H. Toyama and K. Yasumoto, “Electromagnetic scattering from multilayered periodic arrays of ferrite cylinders embedded in a dielectric slab,” Proceedings of The Second IASTED International Conference on Antennas, Radar, and Wave Propagation, vol.1, pp. 106-110, July 2005.

41.     V. Jandieri, K. Yasumoto, and H. Jia, “Electromagnetic scattering by the two-dimensional photonic crystals with periodic defects,” Proceedings of The Second IASTED International Conference on Antennas, Radar, and Wave Propagation, vol. 1, pp. 88- 93, July 2005.

42.      H. Jia and K. Yasumoto, “Analysis of two-dimensional coupled cavity waveguides on a magnetized ferrite,” Proceedings of The Second IASTED International Conference on Antennas, Radar, and Wave Propagation, pp. 94-99, July 2005.

43.     V. Jandieri and K. Yasumoto, “Scattering of the plane waves from the layered multielements periodic grating of circular dielectric cylinders,” Proceedings  of 2005 IEEE International Workshop on Antenna Technology, Vol. 1, pp. 79-82, March 2005.

44.      H. Toyama and K. Yasumoto, “Electromagnetic scattering from periodic arrays of composite circular cylinders with cylindrical inclusions,” Proceedings of 2005 IEEE International Workshop on Antenna Technology, Vol. 1, pp. 355-358, March 2005.

45.      V. Yachin, N. Sidorchuk, and K. Yasumoto, “Method of integral functional in problems of electromagnetic wave scattering by doubly-periodic magnetodielectric structures,” Proceedings of 2004 Korea-Japan Joint Conference on AP/EMC/EMT, pp. 223-226, Nov. 2004.

46.     M. Momoda, T. Miyamoto, and K. Yasumoto, “Flattening of wavelength characteristics of reflected guided modes in index-modulation type periodic embedded optical waveguide with rectangular cross-section,” Proceeding of the 2004 Asia-Pacific Microwave Conference, pp.1-4(CD-ROM), Dec. 2004.

47.      K. Yasumoto and H. Jia, “Analysis of vertical full posts of magnetized ferrite in rectangular waveguide using lattice sums technique”, Proceeding of the 2004 Asia-Pacific Microwave Conference, pp.1-4(CD-ROM), Dec. 2004.

48.      H. Jia and K. Yasumoto, “Modal analysis of two-dimensional photonic crystal waveguides formed by rectangular cylinders,” Proceeding of the 2004 Asia-Pacific Microwave Conference, pp.1-4(CD-ROM), Dec. 2004.

49.     E. Pattar and K. Yasumoto, “Coupled-mode analysis of two-parallel circular dielectric waveguides with a weak rotatory effect,” Proceedings of 2004 International Conference on Fiber Optics and Photonics, pp.1-6(CD-ROM), Dec. 2004.

50.      K. Yasumoto, H. Jia, and N. Koike,  “Scattering and guidance by photonic crystals consisting of periodic arrays of circular cylinders,” Proceedings of 2004 International Conference on Fiber Optics and Photonics, pp.1-14(CD-ROM), Dec. 2004.

51.     H. Jia and K. Yasumoto, “Time domain inverse scattering analysis of stratified lossy media using a forward-backward time-stepping method,” Proceeding of International Conference on Computational Electromagnetics and Its Applications, pp.415-418, Nov. 2004.

52.     H. Jia and K. Yasumoto, “A new analysis of electromagnetic scattering from two-dimensional electromagnetic band-gap structures,” Proceeding of International Conference on Computational Electromagnetics and Its Applications, pp. PS21-PS24, Nov. 2004.

53.      K. Yasumoto, “Modeling of electromagnetic crystals by multilayered periodic arrays of circular cylinders,” Proceeding of Asia-Pacific Radio Science Conference, pp.18-21, Aug. 2004.

54.      K. Yasumoto and H. Jia, “Analysis of two-dimensional electromagnetic crystal waveguides on a magnetized ferrite,” Proceeding of Asia-Pacific Radio Science Conference, pp. 68-69, Aug. 2004.

55.     H. Jia and K. Yasumoto, “Wave scattering from periodic metallic cylinders with arbitrary cross section for a general angle of incidence,” Proceeding of Asia-Pacific Radio Science Conference, pp.101-104, Aug. 2004.

56.     H Jia and K. Yasumoto, “Analysis of guide modes of photonic crystal waveguide consisting of periodic dielectric rods with arbitrary cross section,” Proceeding of Progress In Electromagnetics Research Symposium, p. 55, Aug. 2004.

57.     K. Yasumoto and H. Jia, “Analysis of vertical full posts and electromagnetic crystals in rectangular waveguides,” Proceeding of Progress In Electromagnetics Research Symposium, p.339, Aug. 2004.

58.     H. Jia and K. Yasumoto, “Modal analysis of coupled cavity waveguides using lattice sums technique,” Proceeding of International Conference on Microwave and Millimeter Wave Technology, pp.746-749, Aug. 2004.

59.     K. Yasumoto and H. Jia, “Analysis of electromagnetic crystals in rectangular waveguide using lattice sums technique,” Proceeding of International Conference on Microwave and Millimeter Wave Technology, pp. 742-745, Aug. 2004.

60.     H. Jia and K. Yasumoto, “Analysis of electromagnetic scattering from multilayered crossed-arrays of mixed cylinders,” Proceeding of 2004 China-Japan Joint Meeting on Microwaves, pp. 231-234, Aug. 2004.

61.     K. Yasumoto and H. Jia, “Analysis of vertical post in rectangular waveguide using lattice sums technique,” Proceeding of 2004 China-Japan Joint Meeting on Microwaves, pp. 25-28, Aug. 2004.

62.     H. Jia, K. Yasumoto and H. Toyama, “Rigorous analysis of electromagnetic scattering from layered periodic arrays of circular cylinders embedded in magnetized ferrite slab,” Proceeding of Asia-Pacific Engineering Research Forum on Microwaves and Electromagnetic Theory, pp.194-203, July 2004.

63.     K. Yasumoto, H. Jia, and N. Koike, “Analysis of electromagnetic crystals formed by vertical posts in a rectangular waveguide,” Proceeding of Asia-Pacific Engineering Research Forum on Microwaves and Electromagnetic Theory, pp.152-157, July 2004.

64.     K. Yasumoto and H. Jia, “Reflection and transmission properties of multilayered crossed arrays of circular cylinders,” Proceeding of the fifth International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter, and Submillimeter waves, pp.1-6(CD-ROM), June 2004.

65.     G. Sh. Kevanishvili, G. V. Jadieri, G. V. Kekelia, and K. Yasumoto, “Diffraction of the plane electromagnetic wave on two cylinders with axial periodicity, when one of them is located in the geometrical shadow of another,” Proceeding of 2004 URSI International Symposium on Electromagnetic Theory, vol. 1, pp. 415-417, May 2004.

66.     V. Jandieri and K. Yasumoto, “Diffraction of electromagnetic waves on the layered cross gratings of the periodic circular cylinders,” Proceeding of 2004 URSI International Symposium on Electromagnetic Theory, vol. 2, pp. 1002-1004, May 2004.

67.     V. Jandieri and K. Yasumoto, “Diffraction of plane waves by multielement gratings,” Proceeding of 2004 URSI International Symposium on Electromagnetic Theory, vol. 2, pp. 999-1001, May 2004.

68.     H. Jia and K. Yasumoto, “Electromagnetic scattering from periodic arrays of metallic cylinders with arbitrary cross section,” Proceeding of 2004 URSI International Symposium on Electromagnetic Theory, vol. 2, pp. 775-777, May 2004.

69.     K. Yasumoto, H. Jia, and K. Sun, “Rigorous analysis of two-dimensional photonic crystal waveguide,” Proceeding of 2004 URSI International Symposium on Electromagnetic Theory, pp. 739-741, May 2004.

70.     F. G. Bogdanov, G. Sh. Kevanishvili, G. V. Jandieri, G. V. Kekelia and K. Yasumoto, “Diffraction of the plane electromagnetic wave on two cylinders with axial periodicity, when one of them is located in the geometrical shadow of another,” Proceedings of Progress In Electromagnetics Research Symposium, p. 165, March 2004.

71.     H. Jia and K. Yasumoto, “A rigorous analysis of electromagnetic scattering from gratings of metallic cylinders with arbitrary cross section,” Proceeding of the 2003-2004 Sino-Japanese Joint Meeting on Optical Fiber Science and Electromagnetic Theory, pp. 278-281, March 2004.

72.     K. Yasumoto and H. Jia, “Analysis of electromagnetic scattering from layered crossed-gratings of circular cylinders using lattice sums technique,” in Wave Propagation, Scattering and Emission in Complex Media, Ed. Y.Q. Jin, pp. 225-239, 2004.

73.     H. Jia and K. Yasumoto, “A rigorous analysis of electromagnetic scattering from multilayered crossed-arrays of metallic cylinders,” in Wave Propagation, Scattering and Emission in Complex Media, Ed. Y.Q. Jin, pp. 250-262, 2004.

74.     K. Yasumoto, H. Jia, and K. Sun, “Rigorous analysis of modal properties of two-dimensional photonic crystal waveguides,” Proceeding of the 5th Japan-Korea Joint Workshop on Microwave & Millimeter-wave Photonics, pp. 151-154, Jan. 2004.

75.     K. Yasumoto and H. Jia, “Rigorous analysis of guided modes of photonic crystal waveguides using lattice Sums technique,” Proceedings of CLEO/Pacific Rim 2003, W4C-(14)-4, pp. 1-3 (12, 2003).

76.     H. Jia and K. Yasumoto, “A new approach to electromagnetic diffraction from arbitrary shaped gratings in S-matrix form,” Proceedings of 2003 Asia-Pacific Microwave Conference, Vol. 02, pp. 809-812, Nov. 2003.

77.     H. Toyama and K. Yasumoto, “Electromagnetic scattering from periodic arrays of composite cylinders with internal scatterers,” Proceedings of 2003 Asia-Pacific Microwave Conference, Vol. 01, pp. 249-252, Nov. 2003.

78.     K. Yasumoto and H. Jia, “Electromagnetic scattering and absorption by periodic arrays of lossy circular cylinders embedded in a dielectric slab,” Proceedings of 2003 Asia-Pacific Microwave Conference, Vol. 01, pp. 237-240, Nov. 2003.

79.      K. Yasumoto and H. Jia, “Electromagnetic scattering from multilayered crossed-arrays of circular cylinders,” Proceedings of 2003 International Symposium on Microwave and Optical Technology, pp. 200-205,  Aug. 2003.

80.     H. Toyama and K. Yasumoto, “Electromagnetic scattering from periodic arrays of composite dielectric Cylinder with internal cylindrical objects,” Proceedings of 2003 International Symposium on Microwave and Optical Technology, pp. 222-2225, Aug. 2003.

81.   K. Watanabe and K. Yasumoto, “Fourier modal theory of rectangular dot gratings made of anisotropic and conducting materials,” Proceedings of 2003 International Symposium on Microwave and Optical Technology, pp. 218-221, Aug. 2003.

82.     M. Momoda, T. Miyamoto, K. Yasumoto, “Numerical analysis of lamellar  grating type periodic semiconductor waveguide with rectangular cross- section,” Proceedings of 2003 International Symposium on Microwave and Optical Technology, pp. 210-213, Aug. 2007.

83.     K. Yasumoto and H. Jia, “Eigenmode fields in two-dimensionally periodic arrays of circular cylinders,” Proceedings of Progress in Electromagnetics Research Symposium 2003, p.254, Jan. 2003.

84.     K. Yasumoto and H. Jia, “Electromagnetic guidance in two-dimensional waveguides bounded by photonic crystals,” Proceedings of Progress in Electromagnetics Research Symposium 2003, p.250, Jan. 2003.

85.     H. Jia and K. Yasumoto, “A new image reconstruction algorithm buried cylindrical conducting objects,” Proceedings of Progress in Electromagnetics Research Symposium 2003, p.211, Jan. 2003.

86.     H. Toyama, K. Yasumoto, and H. Jia, “Electromagnetic Scattering and Guidance by Two-Dimensional Photonic Bandgap Structures,” Proc. of XXVIIth General Assembly of URSI, Paper No. P0172, Aug. 2002.

87.     H. Jia, K. Yasumoto, and H. Toyama, “Analysis of electromagnetic scattering from a periodic array of circular cylinders embedded in a magnetized ferrite slab,” Proceedings of 2002 International Conference on Microwave and Millimeter Wave Technology, pp.472-475, Aug. 2002.

88.     K. Yasumoto and H. Jia, “Modal analysis of two-dimensional photonic crystal waveguides using lattice sums technique,” Proceedings of 2002 International Conference on Microwave and Millimeter Wave Technology, pp.1063-1066, Aug. 2002.

89.     H. Jia, K. Yasumoto, and T. Takenaka, “A new method of the image reconstruction from borehole radar data,” Proceedings of 2002 China-Japan Joint Meeting on Microwaves, pp.51-54, April 2002.

90.     K. Yasumoto and H. Jia, “Three-dimensional electromagnetic scattering from multilayered periodic arrays of circular cylinders,” Proceedings of 2002 China-Japan Joint Meeting on Microwaves,  pp.301-304, April 2002.

91.     K. Yasumoto and Sergiy Kiselyov, “Reflection and transmission of electromagnetic plane waves by two-dimensional photonic crystals of finite thickness,” Technical Digest of 3rd Japan-Korea Workshop on Microwaves and Millimeter-Wave Photonics, pp.43-46, Jan. 2002.

92.     K. Yasumoto and H. Toyama, “Electromagnetic scattering from multilayered periodic arrays of two-dimensional discrete composites using lattice sums,” Proceedings of 2001 International Workshop on Advanced Electromagnetics, pp. 124-127, Aug. 2001.

93.     M. Matsunaga and K. Yasumoto, “Coupled-mode analysis for characteristic impedances of coupled microstrip lines on ferrite substrate,” Proceedings of 2001 Asia-Pacific Radio Science Conference, B3-2-04, Aug. 2001.

94.     K. Yasumoto, T. Kushta, and H. Toyama, “Reflection and transmission from periodic composite structures of circular cylinders – Refinement of reflectance and transmittance --,” Proceedings of 4th International Kharkov Symposium on Physics and Engineering of Millimeter and Submillimeter Waves, pp.96-101, June 2001.

95.     T. Miyamoto, M. Momoda, and K. Yasumoto, “Full-vectorial Fourier modal analysis of three-dimensional optical waveguide,” Proceedings of Progress in Electromagnetics Research Symposium, p.103, July 2001

96.     K. Yasumoto, H. Toyama, and T. Kushta, “Electromagnetic scattering from periodic arrays of composite cylindrical objects embedded in dielectric slab,” Proceedings of Progress in Electromagnetics Research Symposium, p.434, July 2001.

97.     K. Watanabe and K. Yasumoto, “Reformulation of differential method for anisotropic gratings in conical mounting,” Proceedings of 8th International Symposium on Microwave and Optical Technology, pp.443-446,  June 2001.

98.     K. Yasumoto, T. Kushta, and H. Toyama, “Reflection and transmission of electromagnetic waves by multilayered periodic arrays of cylindrical objects – Role of evanescent space-harmonics --,” Proceedings of 8th International Symposium on Microwave and Optical Technology, pp.457-460, June 2001.

99.     K. Watanabe and K. Yasumoto, “Reformulation of differential method for anisotropic gratings,” Proceedings of URSI International Symposium on Electromagnetic Theory,  pp.13-15, May 2001.

100.         H. Toyama and K. Yasumoto, “Rigorous analysis of electromagnetic scattering from periodic arrays of composite cylindrical objects,” Proceedings of URSI International Symposium on Electromagnetic Theory, pp.235-237, May 2001.

101.         K. Yasumoto, T. Kushta, and K. Watanabe, “Reflection and transmission characteristics of a periodic array of circular cylinders embedded in a dielectric slab,” Proceedings of 2000 International Conference on Communications, Computer, and Devices, pp.275-277, Dec. 2000.

102.         K. Yasumoto, H. Toyama, and T. Kushta, “Modeling of electromagnetic scattering from two-dimensional photonic bandgap structures using lattice sums technique,” Proceedings of 2000 International Conference on Fiber Optics and Photonics, pp.269-272, Dec. 2000.

103.         T. Miyamoto, M. Momoda, and K. Yasumoto, “Full-vectorial analysis of optical directional coupler,” Proceedings of 2000 Japan-China Joint Conference on Optical Fiber Science and Electromagnetic Theory, pp.231-234, Sept. 2000.

104.          H. Toyama, T. Iwasaki, and K. Yasumoto, “Electromagnetic scattering from a dielectric cylinder with multiple eccentric cylindrical inclusions,” Proceedings of 2000 Japan-China Joint Conference on Optical Fiber Science and Electromagnetic Theory, pp.167-170, Sept. 2000.

105.         K. Yasumoto and K. Watanabe, “Coupled-mode analysis of coupled open waveguides using a singular perturbation technique,” Proceedings of 2000 Japan-China Joint Conference on Optical Fiber Science and Electromagnetic Theory, pp.235-238, Sept. 2000.

106.         H. Jia, K. Yasumoto, and K. Yoshitomi, “Modified perfectly matched boundary conditions for open waveguide structures,” Proceedings of 2000 International Conference on Microwave and Millimeter Wave Technology, pp.287-290, Sept. 2000.

107.         K. Yasumoto, T. Kushta, and K. Yoshitomi, “Electromagnetic scattering from composite periodic arrays of cylindrical objects,” Proceedings of 2000 International Conference on Microwave and Millimeter Wave Technology, pp.311-314, Sept. 2000.

108.         K. Yasumoto, “Generalized method for electromagnetic scattering by two- dimensional periodic discrete composites using lattice sums,” Proceedings of 2000 International Conference on Microwave and Millimeter Wave Technology, pp.P-29－P-34, Sept. 2000.

109.         K. Watanabe and K. Yasumoto, “A formulation for electromagnetic scattering by a two-dimensional periodic array of anisotropic cylindrical layered objects,” Proceedings of 2000 International Symposium on Antennas and Propagation, pp.1311-1314, Aug. 2000.

110.         T. Kushta, V. Kiseliov, Y. Kuleshov, P. Nesterov, and K. Yasumoto, “Polarization scattering characteristics in the submillimeter wave band,” Proceedings of 2000 International Symposium on Antennas and Propagation, pp.493-496, Aug. 2000.

111.         M. Matsunaga and K. Yasumoto, “Coupled-mode analysis for dispersion and impedance characteristics of microstrip lines on ferrite substrates,” Proceedings of 2000 International Symposium on Antennas and Propagation, pp.823-826, Aug. 2000.

112.         K. Yasumoto, T. Kushta, and K. Yoshitomi, “Electromagnetic scattering by a periodic array of cylindrical objects embedded in a dielectric slab,” Proceedings of 2000 International Symposium on Antennas and Propagation, pp.1371-1374, Aug. 2000.

113.         K. Watanabe and K. Yasumoto, “Phase-matching conditions for grating-assisted directional couplers derived by various coupled-mode formulations,” Proceedings of Progress in Electromagnetics Research Symposium, p.415, July 2000.

114.         K. Yasumoto and T. Kushta, “Extinction and scattering of a guided beam in a hollow dielectric waveguide,” Proceedings of Progress in Electromagnetics Research Symposium, p.1092, July 2000.

115.         K. Yasumoto and T. Kushta, “Electromagnetic scattering >from multilayered periodic arrays of cylindrical objects,” Proceedings of China-Japan Joint Conference on Microwaves, pp.196-199, Aug. 2000.

116.          T. Kushta and K. Yasumoto, “Electromagnetic scattering by an object inside a hollow dielectric waveguide used as a facility for scattering measurements,” Proceedings (CD-ROM) of 2000 International Conference on Antennas and Propagation, April 2000.

117.         T. Kushta and K. Yasumoto, “Electromagnetic scattering by two-layered periodic arrays of circular cylinders,” Proceedings (CD-ROM) of 2000 International Conference on Antennas and Propagation, April 2000.

118.         T. Kushta, V. Kiseliov, Y. Kuleshov, P. Nesterov, and K. Yasumoto, “Compact installation for modeling of radar scattering characteristics in the millimeter and submillimeter wave bands,” Technical Digest of 2000 Topical Symposium on Millimeter Waves, pp.137-140, July 2000.

119.         K. Watanabe, J. Ishihara, and K. Yasumoto, “Second-order perturbation theory for a grating-assisted directional coupler,” Proceedings of International Symposium on Recent Advances in Microwave Technology, pp.400-403, Oct. 1999.

120.         K. Yasumoto, K. Watanabe, and J. Ishihara, “Numerical analysis of optical waveguides using Fourier series expansion: Application of perfectly matched layer,” Proceedings of International Symposium on Recent Advances in Microwave Technology, pp.589-592, Dec. 1999.

121.         H. Jia, K. Yasumoto, and K. Yoshitomi, “Rigorous analysis of rectangular groove waveguide,” Proceedings of International Conference of Computational Electromagnetics and Its Application, pp.1-4, Nov. 1999.

122.         K. Yasumoto and T. Kushta, “Electromagnetic scattering by plane arrays of two cylinders in a periodic cell,” Proceedings of International Conference of Computational Electromagnetics and Its Application, pp.406-409, Nov. 1999.

123.         K. Yasumoto, “Numerical analysis of dielectric waveguides using periodic boundary conditions,” Proceedings of International Conference of Computational Electromagnetics and Its Application, pp.P-8-P-11, Nov. 1999.

124.         T. Kushta and K. Yasumoto, “Rigorous analysis of scattering by a periodic array of cylindrical objects,” Proceedings of the 1999 IEEE AP-S  International Symposium, pp.2672-2675, July 1999

125.         T. Kushta, V. Kiseliov, and K. Yasumoto, “Generalized recursive algorithm to scattering by an object inside a hollow dielectric waveguide used as a facility for scattering measurements,” Proceedings of 21th Symposium on Antenna Measurement Techniques Association, pp.298-303, June 1999.

126.         K. Yasumoto and T. Kushta, “Accurate analysis of electromagnetic scattering by an array of cylindrical objects using lattice sums,” Proceedings of 1999 Japan-China Symposium on Advanced Information Technology, pp.217-224, July 1999.

127.         K. Yasumoto and T. Kushta, “Efficient analysis of scattering by periodic arrays of gyrotropic cylinders,” Proceedings of The Far-Eastern School-Seminar on Mathematical Modeling and Numerical Analysis, pp. 130-137, Aug. 1999.

128.         T. Kushta, K. Yasumoto, and V. Kiseliov, “A spherical scatterer inside a hollow dielectric waveguide used as a facility for scattering measurements,” in Abstracts of the XXVIth General Assembly of URSI, B3.P.14, p.76, June 1999.

129.         K. Yasumoto, “Rigorous analysis of electromagnetic scattering by periodic arrays of cylindrical objects using lattice sums,” Abstracts of the XXVIth General Assembly of URSI, B4.2, p.88, June 1999. 

130.         T. Kushta and K. Yasumoto, “Generalized recursive algorithm for the scattering from a spherical inhomogeneity inside a circular dielectric waveguide,” Digest of USNC/URSI National Radio Science Meeting, p. 21, July 1999.

131.         V. Kiseliov, T. Kushta, and K. Yasumoto, “A simplified approach to study of a transition made on a hollow dielectric waveguide,” Proceedings of Progress in Electromagnetics Research Symposium, p.324, July 1999.

132.         K. Yasumoto, T. Miyamoto, and M. Momoda, “Full-wave modeling of transitions in three-dimensional optical waveguides using periodic boundary conditions,” Proceedings of Progress in Electromagnetics Research Symposium, p.413, Aug. 1999.

133.         H. Maeda and K. Yasumoto, “Numerical analysis of pulse wave propagation in two-dimensional nonlinear optical waveguide by finite-difference time-domain method,” Proceedings of Progress in Electromagnetics Research Symposium, p.407, Aug. 1999.

134.         H. Jia, K. Yasumoto, and K. Yoshitomi, “Analysis of inset dielectric guide with a finite conductivity of metals,” Proceedings of 1998 Asia-Pacific Microwave Conference, pp.269-272, Dec. 1998.

135.         K. Yasumoto, T. Miyamoto, and M. Momoda, “Full-wave analysis of optical waveguides using periodic boundary conditions,” Proceedings of 1998 International Conference on Fiber Optics and Photonics, pp.503-508, Dec. 1998.

136.         K. Watanabe and K. Yasumoto, “Coupled-mode formulation for double-strip NRD waveguides based on singular perturbation technique,” Proceedings of the Fourth International Kharkov Symposium on Physics and Engineering of Millimeter and Submillimeter Waves,  pp. 589-591, June 1998.

137.         T. Miyamoto, M. Momoda, and K. Yasumoto, “Analysis of an embedded dielectric waveguide with parabolic index distribution in the two-dimensional cross section,” Proceedings of 1998 International Conference on Microwave and Millimeter Wave Technology, pp.841-844, Aug. 1998.

138.         K. K. Han, K. Yasumoto, and K. Uchida, “FVTD analysis of propagation of radio waves through a modified T-junction in two-dimensional tunnels,” Proceedings of 1998 International Conference on Microwave and Millimeter Wave Technology, pp.1032-1035, Aug. 1998.

139.         H. Jia, K. Yasumoto, and K. Yoshitomi, “Rigorous analysis of rectangular waveguide E-H cross junction using Fourier transform technique,” Proceedings of 1998 International Conference on Microwave and Millimeter Wave Technology, pp.877-880, Aug. 1998.

140.         K. Yasumoto, M. Matsunaga, and Banmali S. Rawat, “Coupled-mode theory of terminal characteristic parameters for multilayered and multiconductor lines,” Proceedings of 1998 International Conference on Microwave and Millimeter Wave Technology, pp.561-564, Aug. 1998.

141.         M. Momoda, T. Miyamoto, and K. Yasumoto, “Numerical analysis of a two-parallel embedded dielectric waveguide with parabolic index profile,” Proceedings of 1998 China-Japan Joint Meeting on Microwaves, pp.82-85, 1998.

142.         H. Maeda, H. Hamada, and K. Yasumoto, “Numerical analysis of two-dimensional nonlinear optical waveguide,” Proceedings of 1998 China-Japan Joint Meeting on Microwaves, pp.70-73, 1998.

143.         H. Jia, K. Yasumoto, and K. Yoshitomi, “Analysis of inset dielectric guide using Fourier transform technique with perfectly matched boundary,” Proceedings of 1998 China-Japan Joint Meeting on Microwaves, pp.271-274, Aug. 1998.

144.         K. Yasumoto and T. Ueno, “Rigorous analysis of scattering by a periodic array of cylindrical objects using lattice sums,” Proceedings of 1998 China-Japan Joint Meeting on Microwaves, pp.247-250, Aug. 1998.

145.         H. Maeda, H. Hamada, and K. Yasumoto, “Finite difference time domain analysis of nonlinear optical waveguide,” Technical Digest of Nonlinear Optics '98 -- Materials, Fundamentals and Applications Topical Meeting --, pp.104-106, July 1998.

146.         K. Watanabe and K. Yasumoto, “Analysis of a grating-assisted directional coupler using coupled-mode formulation based on singular perturbation Technique,” Proceedings of Progress in Electromagnetics Research Symposium, p.219, Aug. 1998.

147.         K. Yasumoto and K. Yoshitomi, “Efficient calculation of lattice sums for space-periodic Green's function,” Proceedings of URSI International Symposium on Electromagnetic Theory, pp.834-836, July 1998.

148.       M. Matsunaga and K. Yasumoto, “Coupled-mode analysis of modal characteristic impedance of coupled bi-level microstrip lines,” Proceedings of 1997 Asia-Pacific Microwave Conference, pp.965-968, Dec. 1997.

149.         K. Yasumoto and K. Ohzawa, “Analysis of step transitions in optical fibers using periodic boundary conditions,” Proceedings of 1997 Asia-Pacific Microwave Conference, pp.665-668, Dec. 1997.

150.         H. Jia, K. Yoshitomi, and K. Yasumoto, “Rigorous analysis of E-plane T-junctions in rectangular waveguides by Fourier transform technique,” Proceedings of Sino-Japanese Joint Meeting on Optical Fiber Science and Electromagnetic Theory, pp.184-189, Oct. 1997.

151.          K. Yasumoto and M. Matsunaga, “Coupled-mode analysis of bi-level coupled microstrip lines,” Proceedings of International Symposium on Recent Advances in Microwave Technology, pp.456-462, 1997.

152.         K. Watanabe and K. Yasumoto, “Power transfer characteristics in a grating-assisted three-waveguide directional coupler,” Proceedings of Progress in Electromagnetics Research Symposium, p.508, July 1997.

153.         K. Yasumoto, H. Maeda, and N. Mitsunaga, “Full-wave coupled-mode theory of nonlinear fiber coupler,” Proceedings of Progress in Electromagnetics Research Symposium, p.293, July 1997.

154.         H. Jia, K. Yoshitomi, K. Yasumoto, “Rigorous analysis of H-plane T-junctions in rectangular waveguide by Fourier transform technique,” Proceedings of 1997 International Symposium on Recent Advances in Microwave Technology, pp.109-112, Aug. 1997.

155.         K. Yasumoto and M. Matsunaga, “Coupled-mode analysis of bi-level coupled microstrip lines,” Proceedings of 1997 International Symposium on Recent Advances in Microwave Technology, pp.459-462, Aug. 1997.

156.         K. Yasumoto and S. Morita, “Numerical analysis of dielectric waveguide transitions using a Fourier series expansion method,” Proceedings of 1996 Progress in Electromagnetics Research Symposium, p.572, July 1996.

157.         K. Watanabe and K. Yasumoto, “A novel perturbation analysis of coupled optical waveguides,” Proceeding of 1996 International Symposium on Antennas and Propagation, pp.629-632, Sept. 1996.

158.         M. Matsunaga and K. Yasumoto, “Coupled-mode analysis of coupled multiconductor microstrip lines,” Proceeding of 1996 International Symposium on Antennas and Propagation, pp.273-276, Sep. 1996.

159.         K. Yasumoto, H. Maeda, and S. Morita, “Numerical analysis of transitions and discontinuities in optical waveguides,” Proceedings of 1996 Asia-Pacific Microwave Conference, pp.647-650, Dec. 1996.

160.         K. Yasumoto and N. Mitsunaga, “Coupled-mode theory of nonlinear fiber coupler based on full-wave formulation,” Proceedings of Korea-Japan Joint Conference on Electromagnetic Theory and Compatibility, pp.66-69, Oct. 1996.

161.         K. Yasumoto and N. Mitsunaga, “Coupled-mode analysis of nonlinear optical fiber directional coupler,” Proceedings of 1996 China-Japan Joint Conference on Microwaves, pp.44-47, Aug. 1996.

162.         H. Maeda, K. Yasumoto, and H. Nakagawa, “FD-BPM analysis of asymmetric Y-branch waveguide loaded with nonlinear dielectric cladding,” Proceedings of 1995 International Laser, Lightwave and Microwave Conference, pp.208-211, Sept. 1995.

163.         K. Yasumoto and Y. Sakaguchi, “Coupled-mode analysis of multilayered and multiconductor transmission lines,” Proceedings of 1995 International Symposium on Recent Advances in Microwave Technology, pp.448-451, Nov. 1995.

164.         K. Yasumoto, “Coupled-mode formulation of multilayered and multiconductor transmission lines,” Proceedings of URSI International Symposium on Electromagnetic Theory, pp.117-119, Aug. 1995

165.         K. Yasumoto, K. Nakamura, and H. Maeda, “Numerical analysis of nonidentical three-waveguide nonlinear directional coupler,” Proceedings of Sino-Japanese Joint Meeting on Optical Fiber Science and Electromagnetic Theory, pp.B-94-B-99, Aug. 1995.

166.         K. Yasumoto and Y. Sakaguchi, “Coupled-mode analysis of coupled microstrip transmission lines,” Proceedings of 1995 Asia-Pacific Microwave Conference, pp.374-377, Dec. 1995.

167.         K. Yasumoto, “Coupled-mode technique for parallel optical waveguides using a singular perturbation scheme,” Proceedings of 1995 Progress in Electromagnetics Research Symposium, p.389, July 1995.

168.         K. Yasumoto, N. Mitsunaga, and H. Maeda, “Coupled-mode analysis of a three-waveguide nonlinear directional coupler,” Proceedings of 1994 Asia-Pacific Microwave Conference, pp.705-708, Dec. 1994.

169.          K. Yasumoto, M. Puchta, and Y. Hidaka, “Numerical analysis of asymmetric Y-branching optical waveguide with refraction-induced wedge,” Proceedings of 1994 International Conference on Computational Electromagnetics and Its Application, pp.453-456, Oct. 1994.

170.          K. Yasumoto, “Numerical analysis of optical waveguides using the mode-matching method,” Proceedings of 1993 International Symposium on Recent Advances in Microwave Technology, pp.697-700, Dec. 1993

171.          K. Yasumoto and N. Maekawa, “Coupled-mode formulation of nonlinear directional coupler,” Proceedings of 1993 Asia-Pacific Microwave Conference, pp.14-5-148, Nov. 1993.

172.          K. Yasumoto and N. Maekawa, “Coupled-mode formulation of a symmetric nonlinear directional coupler,” Proceedings of 1993 International Symposium on Antennas and EM Theory, pp.203-206, Sept. 1993.

173.          H. Kubo and K. Yasumoto, “Leaky waves in cylindrical dielectric waveguides with periodic surface,” Abstracts of XXIVth General Assembly of the International Union of Radio Science, p.21, July 1993.

174.          H. Maeda and K. Yasumoto, “Optical power filter using the asymmetric nonlinear directional coupler,” Abstracts of XXIVth General Assembly of the International Union of Radio Science, p.161, July 1993.

175.          H. Maeda, K. Yasumoto, and M. Yokota, “Numerical analysis of the optically controlled phase-mismatch nonlinear directional coupler by orthogonal collocation method,” Proceeding of 1992 International Symposium on Antennas and Propagation, pp.925-928, Aug. 1992.

176.          M. Yokota and K. Yasumoto, “Analysis of nonlinear grating couplers,” Proceeding of 1992 International Symposium on Antennas and Propagation, pp.921-924, 1992.

177.          K. Yasumoto and S. B. Wu, “Vector modes of three circular dielectric waveguides in an equilateral triangular array,” Proceeding of 1992 International Symposium on Antennas and Propagation, pp.905-908, Aug. 1992.

178.          K. Yasumoto, “Coupled-mode analysis of polarization splitting directional coupler,” Proceedings of 1992 Asia-Pacific Microwave Conference, pp.681-684, Nov. 1992.

179.          H. Maeda, M. Yokota, and K. Yasumoto, “Numerical analysis of nonlinear directional coupler by orthogonal collocation method,” Proceedings of URSI International Symposium on Electromagnetic Theory, pp.290-292, Sept. 1992.

180.          M. Yokota and K. Yasumoto, “Guided TM waves supported by a weakly nonlinear slab waveguide,” Proceedings of URSI International Symposium on Electromagnetic Theory, pp.221-223, Sept. 1992.

181.          K. Yasumoto, “Coupled-mode formulation of two-parallel circular dielectric waveguides using singular perturbation technique,” Proceeding of the 1992 IEEE AP-S International Symposium, pp.452-455, July 1992.

182.          K. Yasumoto, “On the coupled-mode formulation of parallel dielectric waveguides,” Proceedings of 1992 URSI Radio Science Meeting, p.256, June 1992.

183.          K. Yasumoto, H. Kubo, and K. Shigeta, “Numerical analysis of power divider using multiple waveguides,” Proceedings of Sino-Japanese Joint Meeting on Optical Fiber Science and Electromagnetic Theory, EMT-90-117, pp.37-46, Sept. 1990.

184.          K. Yasumoto, T. Tanaka, and T. Aramaki, “Optimum parameters of a two dimensional Smith-Purcell radiating system,” Proceeding of 1989 International Symposium on Antennas and Propagation, pp.141-144, Aug. 1989.

185.          K. Yasumoto and T. Tanaka, “Radiation by a modulated sheet electron beam propagating parallel to a reflection grating under a finite magnetic field,” Proceeding of the 1989 IEEE AP-S International Symposium, pp.364-367, July 1989.

186.          K. Yasumoto and T. Itoh, “Numerical analysis of wave guidance by a dielectric waveguide with a periodically varying circular cross section,” Proceedings of Beijing International Symposium on Electromagnetic Field in Electrical Engineering, pp.504-507, Sept. 1988.

187.          K. Yasumoto and Y. Itoh, “Numerical analysis of wave guidance by a dielectric waveguide with a periodic surface,” Proceedings of Second Asia-Pacific Microwave Conference, pp.148-149, Nov. 1988.

188.         H. Kubo and K. Yasumoto, “Numerical analysis of three channel waveguide coupler,” Proceedings of the Second Optoelectronics Conference, pp.226-227, June 1988.

189.         K. Yasumoto and T. Itoh, “Wave guidance by a cylindrical dielectric waveguide with a periodically varying diameter,” Proceedings of the Second Optoelectronics Conference, pp.20-21, June 1988.

190.         K. Yasumoto, T. Tanaka, and T. Aramaki, “Numerical analysis of Smith-Purcell radiation by a relativistic electron beam propagating parallel to a reflection grating,” Proceedings of 1988 IEEE AP-S International Symposium, pp.295-298, July 1988.

191.         K. Yasumoto and T. Tanaka, “Radiation by a relativistic sheet electron beam propagating over a corrugated conducting surface,” Proceedings of Sino-Japanese Joint Meeting on Optical Fiber Science and Electromagnetic Theory, pp.433-440, Sept. 1987.

192.         K. Yasumoto and M. Murayama, “A rigorous analysis of a thin-film dielectric waveguide with a sinusoidal surface corrugation,” Proceedings of URSI International Symposium on Electromagnetic Theory, Part B, pp.601-603, July 1986.

193.       K. Yasumoto and N. Fukudome, “Scattering of electromagnetic plane waves by a column of magnetized hot plasma,” Proceedings of 1985 International Symposium on Antennas and Propagation, pp.847-850, July 1985.

194.       K. Yasumoto, “Energy conversion into second harmonics by a relativistic annular electron beam in a cylindrical waveguide,” Proceedings of Sino-Japanese Joint Meeting on Optical Fiber Science and Electromagnetic Theory, pp.369-372, Aug. 1985.

195.       K. Yasumoto and K. Banfuku, “Reflection of electromagnetic plane waves from a semi-infinite plasma with a diffuse reflection boundary,” Proceedings of 1984 IEEE AP-S International Symposium, pp.720-723, July 1984.

196.       K. Yasumoto, “On a zig-zag ray picture in a planar waveguide,” Proceedings of International Symposium on Optical Waveguide Sciences, pp.299-305, Sept. 1983.

Accepted

       1.    V. Yachin and K. Yasumoto, “Analysis of Layered Crossed Gratings Using Method of Integral Functionals Based on a Model of Double Periodic Magneto-Dielectric Layer,” Proceedings of Progress in Electromagnetics Research Symposium, Mar. 2008 (in press).