Shinnosuke SAWA


Tapered Velocity Couplers Composed of Nonlinear Waveguides for Limiting Optical Power
Toshiaki KITAMURA Tetsuro YABU Masahiro GESHIRO Shinji HARADA Shinnosuke SAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2001/04/01
Vol. E84-C  No. 4  pp. 421-426
Type of Manuscript:  PAPER
Category: Electromagnetic Theory
Keyword: 
tapered velocity couplernonlinear waveguideoptical power limiterfinite difference method
 Summary | Full Text:PDF(260.1KB)

Optical Logic OR-AND-NOT and NOR Gates in Waveguides Consisting of Nonlinear Material
Yono Hadi PRAMONO Masahiro GESHIRO Toshiaki KITAMURA Shinnosuke SAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2000/11/25
Vol. E83-C  No. 11  pp. 1755-1762
Type of Manuscript:  PAPER
Category: Optoelectronics
Keyword: 
nonlinear waveguideoptical logicfinite difference beam propagation method
 Summary | Full Text:PDF(1.2MB)

Self-Switching in Crossing Waveguides with Three Channels Consisting of Nonlinear Material
Yono Hadi PRAMONO Masahiro GESHIRO Toshiaki KITAMURA Shinnosuke SAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/01/25
Vol. E82-C  No. 1  pp. 111-118
Type of Manuscript:  PAPER
Category: Opto-Electronics
Keyword: 
nonlinear waveguideoptical switchfinite difference beam propagation method FD-BPM
 Summary | Full Text:PDF(793.1KB)

Characterization of Triplate Strip Resonators with a Loading Capacitor
Toshiaki KITAMURA Masahiro GESHIRO Toshio ISHIZAKI Tomoya MAEKAWA Shinnosuke SAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1998/12/25
Vol. E81-C  No. 12  pp. 1793-1799
Type of Manuscript:  Special Section PAPER (Special Issue on Computational Electromagnetics)
Category: 
Keyword: 
loading capacitorstrip resonatorfinite-difference time-domain method
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A Three-Waveguide Tapered-Velocity Coupler for Dividing Optical Power into Three Equal Parts
Masahiro GESHIRO Toshiaki KITAMURA Koji FUKUMURA Shinnosuke SAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1997/11/25
Vol. E80-C  No. 11  pp. 1414-1420
Type of Manuscript:  Special Section PAPER (Special Issue on Electromagnetic TheoryScattering and Diffraction)
Category: 
Keyword: 
tapered-velocity coupleradiabatic conditionoptical power dividerfinite difference beam propagation method
 Summary | Full Text:PDF(586KB)

Design Considerations on a Guided-Wave Polarization Splitter Utilizing a Bifurcating Waveguide in a Uniaxial Anisotropic Substrate
Toshiaki KITAMURA Masahiro GESHIRO Shinnosuke SAWA Hideatsu YAMANAKA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1996/10/25
Vol. E79-C  No. 10  pp. 1399-1404
Type of Manuscript:  Special Section PAPER (Special Issue on Electromagnetic Theory-Foundations and Applications)
Category: 
Keyword: 
polarization splitterbifurcating waveguideuniaxial anisotropyfinite difference beam propagation method
 Summary | Full Text:PDF(552.5KB)

Scattering from an Infinite Array of Slots with Polar-Type Anisotropic Media
Masamitsu ASAI Jiro YAMAKITA Shinnosuke SAWA Junya ISHII 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1996/10/25
Vol. E79-C  No. 10  pp. 1371-1377
Type of Manuscript:  Special Section PAPER (Special Issue on Electromagnetic Theory-Foundations and Applications)
Category: 
Keyword: 
scatteringgratingslotarrayanisotropic
 Summary | Full Text:PDF(567.6KB)

A Two-Waveguide Tapered Velocity Coupler for a Variable Divider of Optical Power
Masahiro GESHIRO Toshiaki KITAMURA Tadashi YOSHIKAWA Shinnosuke SAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1996/04/25
Vol. E79-C  No. 4  pp. 587-592
Type of Manuscript:  PAPER
Category: Electromagnetic Theory
Keyword: 
optical power dividertapered velocity couplerLiNbO3 waveguideelectro-optic effectfinite difference beam propagation method
 Summary | Full Text:PDF(542.8KB)

Low Loss Optical Waveguide Bends Consisting of Uniaxial Crystalline Material
Shinnosuke SAWA Toshiaki KITAMURA Masahiro GESHIRO Tadashi YOSHIKAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/10/25
Vol. E78-C  No. 10  pp. 1373-1377
Type of Manuscript:  Special Section PAPER (Special Issue on Electromagnetic Theory)
Category: 
Keyword: 
low loss bendanisotropicoptical waveguidefinite difference method
 Summary | Full Text:PDF(429.4KB)

Scattering by Two-Dimensional Rectangular Resistive Plane Gratings with Anisotropic Slab
Masamitsu ASAI Jiro YAMAKITA Shinnosuke SAWA Junya ISHII 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/10/25
Vol. E78-C  No. 10  pp. 1453-1459
Type of Manuscript:  Special Section PAPER (Special Issue on Electromagnetic Theory)
Category: 
Keyword: 
scatteringgratingpatcharrayanisotropic
 Summary | Full Text:PDF(567.2KB)

Electromagnetic Wave Absorption in Multilayered Anisotropic Models of Tissue
Masamitsu ASAI Jiro YAMAKITA Shinnosuke SAWA Junya ISHH 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1994/06/25
Vol. E77-B  No. 6  pp. 766-769
Type of Manuscript:  Special Section LETTER (Special Issue on Biological Effects of Electromagnetic Fields)
Category: 
Keyword: 
anisotropictissueabsorptionbiological effectsmultilayered
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Analysis of Abrupt Discontinuities in Weakly Guiding Waveguides by a Modified Beam Propagation Method
Masashi HOTTA Masahiro GESHIRO Shinnosuke SAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1993/12/25
Vol. E76-B  No. 12  pp. 1552-1557
Type of Manuscript:  Special Section PAPER (Special Issue on 1992 Internatioal Symposium on Antennas and Propagation)
Category: 
Keyword: 
beam propagation methodreflectionwaveguide discontinuityoverlap integralweakly guiding structure
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Application of Beam Propagation Method to Discontinuities of Weakly Guiding Structures
Masashi HOTTA Masahiro GESHIRO Shinnosuke SAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1993/08/25
Vol. E76-C  No. 8  pp. 1333-1338
Type of Manuscript:  PAPER
Category: Opto-Electronics
Keyword: 
beam propagation methodreflected wavewaveguide discontinuityoverlap integral
 Summary | Full Text:PDF(524.5KB)

On a Numerical Solution for the Near-Field of Microstrip Antennas
Yasufumi SASAKI Masanobu KOMINAMI Shinnosuke SAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1993/07/25
Vol. E76-B  No. 7  pp. 759-761
Type of Manuscript:  Special Section LETTER (Special Section of Letters Selected from the 1992 IEICE Fall Conference and the 1993 IEICE Spring Conference)
Category: 
Keyword: 
microstrip antennanear-fieldspectral-domain moment methodcircular polarizationconvergence
 Summary | Full Text:PDF(153.3KB)

Polarization Characteristics of Plane Waves Scattered by a Strip Grating with an Anisotropic Substrate
Masamitsu ASAI Jiro YAMAKITA Shinnosuke SAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1992/12/25
Vol. E75-A  No. 12  pp. 1765-1767
Type of Manuscript:  Special Section LETTER (Special Section on the 1992 IEICE Fall Conference)
Category: 
Keyword: 
anisotropystrip gratingpolarizationscatteringelectromagnetic field theory
 Summary | Full Text:PDF(177.3KB)

Scattering from Conductor or Complementary Aperture Array on a Semi-infinite Substrate
Hideaki WAKABAYASHI Masanobu KOMINAMI Shinnosuke SAWA Hiroshi NAKASHIMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1992/12/25
Vol. E75-A  No. 12  pp. 1762-1764
Type of Manuscript:  Special Section LETTER (Special Section on the 1992 IEICE Fall Conference)
Category: 
Keyword: 
FSSscatteringmoment methodcomplementary arraysmagnetic field equationmagnetic current
 Summary | Full Text:PDF(165.9KB)

Design Considerations for Multimode Y Junction Waveguides in Lens-Like Media
Kazuo ONO Shinnosuke SAWA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1990/06/25
Vol. E73-E  No. 6  pp. 870-872
Type of Manuscript:  LETTER
Category: Electro-Optics
Keyword: 
 Summary | Full Text:PDF(174.3KB)