Koichi Hirayama

17 papers Journal 17
YearRankTypeTitle / Venue / Authors
2023 J jnl
Bending Loss Analysis of Chalcogenide Glass Channel Waveguides for Mid-Infrared Astrophotonic Devices.
IEICE Trans. Electron.
Takashi Yasui, Jun-ichiro Sugisaka, Koichi Hirayama
2023 J jnl
Permittivity Estimation Based on Transmission Coefficient for Gaussian Beam in Free-Space Method.
IEICE Trans. Electron.
Koichi Hirayama, Yoshiyuki Yanagimoto, Jun-ichiro Sugisaka, Takashi Yasui
2022 J jnl
Foreword.
IEICE Trans. Electron.
Koichi Hirayama, Hiroyuki Deguchi
2022 J jnl
Permittivity Measurement Method for Thin Sheets Using Split-Cylinder Resonator With Protrusions.
IEEE Trans. Instrum. Meas.
Koichi Hirayama, Yoshiyuki Yanagimoto, Jun-ichiro Sugisaka, Takashi Yasui
2021 J jnl
Foreword.
IEICE Trans. Electron.
Koichi Hirayama, Hiroyuki Deguchi
2021 J jnl
Single-Mode Condition of Chalcogenide Glass Channel Waveguides for Integrated Optical Devices Operated across the Astronomical
IEICE Trans. Electron.
Takashi Yasui, Jun-ichiro Sugisaka, Koichi Hirayama
2020 J jnl
Design of Compact Long-Wavelength-Pass Filter in Metal-Dielectric-Metal Plasmonic Waveguide with Stubs Using Transmission Line Model.
IEICE Trans. Electron.
Koichi Hirayama, Jun-ichiro Sugisaka, Takashi Yasui
2020 J jnl
Foreword.
IEICE Trans. Electron.
Akira Hirose, Koichi Hirayama
2020 J jnl
Reconstruction of Scatterer Shape from Relative Intensity of Scattered Field by Using Linearized Boundary Element Method.
IEICE Trans. Electron.
Jun-ichiro Sugisaka, Takashi Yasui, Koichi Hirayama
2019 J jnl
Foreword.
IEICE Trans. Electron.
Akira Hirose, Koichi Hirayama
2018 J jnl
Topology optimal design for optical waveguides using time domain beam propagation method.
IEICE Electron. Express
Akito Iguchi, Yasuhide Tsuji, Takashi Yasui, Koichi Hirayama
2017 J jnl
Efficient Analysis of Diffraction Grating with 10000 Random Grooves by Difference-Field Boundary Element Method.
IEICE Trans. Electron.
Jun-ichiro Sugisaka, Takashi Yasui, Koichi Hirayama
2016 J jnl
Efficient Scattering Analysis of Arbitrarily Shaped Local Defect in Diffraction Grating.
IEICE Trans. Electron.
Jun-ichiro Sugisaka, Takashi Yasui, Koichi Hirayama
2014 J jnl
A Study on Optimization of Waveguide Dispersion Property Using Function Expansion Based Topology Optimization Method.
IEICE Trans. Electron.
Hiroyuki Goto, Yasuhide Tsuji, Takashi Yasui, Koichi Hirayama
2011 J jnl
Design Optimization of H-Plane Waveguide Component by Level Set Method.
IEICE Trans. Electron.
Koichi Hirayama, Yasuhide Tsuji, Shintaro Yamasaki, Shinji Nishiwaki
2007 J jnl
Application of Topology Optimization to H-Plane Waveguide Component.
IEICE Trans. Electron.
Koichi Hirayama, Yasuhide Tsuji, Tsuyoshi Nomura, Kazuo Sato, Shinji Nishiwaki
2006 J jnl
Curvilinear triangular-prism element for computation of band structure in photonic crystal slab.
IEICE Electron. Express
Koichi Hirayama, Masatoshi Kanou, Yasuhide Tsuji, Masanori Koshiba