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Affiliation |
Engineering educational research section Information and Communication Technology Program |
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Title |
Associate Professor |
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External Link |
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NAKA Yoshihiro
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Papers 【 display / non-display 】
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Equivalent Circuit Expression of Optical Resonator Structure Constructed by Two-Dimensional MDM Plasmonic Narrow Waveguide Reviewed
NAKA Yoshihiro, NISHIMOTO Masahiko, YOKOTA Mitsuhiro
J106-C ( 9 ) 360 - 365 2023.9
Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)
The resonator structure constructed by a metal-dielectric-metal plasmonic waveguide have been expressed by an equivalent transmission line circuit. The resonator structure consists of input/output waveguides and a narrow waveguide. We have found that the transmittance of the equivalent circuit agreed with that by the finite difference time domain (FD-TD) method with the piecewise linear recursive convolution (PLRC) method when the difference in width between the input/output waveguides and the narrow waveguide is small. The result also shown that high transmittance was achieved by increasing waveguide widths of input/output and narrow waveguide.
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Analysis of Optical Resonator Constructed by Two-Dimensional MDM Plasmonic Waveguide Reviewed
NAKA Yoshihiro, NISHIMOTO Masahiko, YOKOTA Mitsuhiro
IEICE Transactions on Electronics E106.C ( 3 ) 103 - 106 2023.3
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：The Institute of Electronics, Information and Communication Engineers
An efficient bent waveguide and an optical power splitter with a resonator constructed by a metal-dielectric-metal plasmonic waveguide have been analyzed. The method of solution is the finite difference time domain (FD-TD) method with the piecewise linear recursive convolution (PLRC) method. The resonator can be realized by utilizing impedance mismatch at the connection between a narrow waveguide and an input/output waveguide. Numerical results for the bent waveguide show that transmission bands can be controlled by adjusting the length of the narrow waveguide. We have also shown that the optical power of the power splitter is entirely distributed into the output waveguide at the resonant wavelength and its distribution ratio can be controlled.
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超広帯域レーダによるコンクリート内部鉄筋の腐食状態推定について Invited Reviewed
西本昌彦, ブディマン P.A. ローマン, 中 良弘, 緒方公一
電子情報通信学会論文誌C J104-C ( 11 ) 319 - 325 2021.11
Language：Japanese Publishing type：Research paper (scientific journal)
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Analysis of transient scattering by a metal cylinder covered with inhomogeneous lossy material for nondestructive testing Reviewed
M.Nishimoto and Y.Naka
IEICE Trans. Electron. E101-C ( 1 ) 44 - 47 2018.1
Language：English Publishing type：Research paper (scientific journal)
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Improvement of m-plane ZnO films formed on buffer layers on sapphire substrates by mist chemical vapor deposition Reviewed
H.Tanoue, M.Takenouchi, T.Yamashita, S.Wada, Z.Yatabe, S.Nagaoka, Y.Naka, and Y.Nakamura
Physica Status Solidi (A) Applications and Materials Science 214 ( 3 ) 1600603-1 - 1600603-5 2017.3
Language：English Publishing type：Research paper (scientific journal)
Books 【 display / non-display 】
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Electromagnetic Theory and Applications for Photonic Crystals
K.Yasumoto(Eds.), H.Ikuno, Y.Naka, et al.（ Role： Joint author）
CRC Press 2005.10
Total pages：464 Responsible for pages：401-444 Language：English Book type：Scholarly book
Presentations 【 display / non-display 】
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2次元MDMプラズモニック導波路により構成される共振器構造を有する曲がり導波路の特性解析
中良弘, 横田光広, 西本昌彦
2021年電子情報通信学会ソサイエティ大会 2021.9.17
Event date： 2021.9.14 - 2021.9.17
Language：Japanese Presentation type：Oral presentation (general)