Koichi Hirayama

According to our database, Koichi Hirayama authored at least 15 papers between 2006 and 2023.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2023

Permittivity Estimation Based on Transmission Coefficient for Gaussian Beam in Free-Space Method.

Koichi Hirayama, Yoshiyuki Yanagimoto, Jun-ichiro Sugisaka, Takashi Yasui

IEICE Trans. Electron., June, 2023

Bending Loss Analysis of Chalcogenide Glass Channel Waveguides for Mid-Infrared Astrophotonic Devices.

Takashi Yasui, Jun-ichiro Sugisaka, Koichi Hirayama

IEICE Trans. Electron., March, 2023

2022

Permittivity Measurement Method for Thin Sheets Using Split-Cylinder Resonator With Protrusions.

Koichi Hirayama, Yoshiyuki Yanagimoto, Jun-ichiro Sugisaka, Takashi Yasui

IEEE Trans. Instrum. Meas., 2022

Foreword.

Koichi Hirayama, Hiroyuki Deguchi

IEICE Trans. Electron., 2022

2021

Single-Mode Condition of Chalcogenide Glass Channel Waveguides for Integrated Optical Devices Operated across the Astronomical <i>N</i>-Band.

Takashi Yasui, Jun-ichiro Sugisaka, Koichi Hirayama

IEICE Trans. Electron., 2021

2020

Reconstruction of Scatterer Shape from Relative Intensity of Scattered Field by Using Linearized Boundary Element Method.

Jun-ichiro Sugisaka, Takashi Yasui, Koichi Hirayama

IEICE Trans. Electron., 2020

Foreword.

Akira Hirose, Koichi Hirayama

IEICE Trans. Electron., 2020

Design of Compact Long-Wavelength-Pass Filter in Metal-Dielectric-Metal Plasmonic Waveguide with Stubs Using Transmission Line Model.

Koichi Hirayama, Jun-ichiro Sugisaka, Takashi Yasui

IEICE Trans. Electron., 2020

2018

Topology optimal design for optical waveguides using time domain beam propagation method.

Akito Iguchi, Yasuhide Tsuji, Takashi Yasui, Koichi Hirayama

IEICE Electron. Express, 2018

2017

Efficient Analysis of Diffraction Grating with 10000 Random Grooves by Difference-Field Boundary Element Method.

Jun-ichiro Sugisaka, Takashi Yasui, Koichi Hirayama

IEICE Trans. Electron., 2017

2016

Efficient Scattering Analysis of Arbitrarily Shaped Local Defect in Diffraction Grating.

Jun-ichiro Sugisaka, Takashi Yasui, Koichi Hirayama

IEICE Trans. Electron., 2016

2014

A Study on Optimization of Waveguide Dispersion Property Using Function Expansion Based Topology Optimization Method.

Hiroyuki Goto, Yasuhide Tsuji, Takashi Yasui, Koichi Hirayama

IEICE Trans. Electron., 2014

2011

Design Optimization of H-Plane Waveguide Component by Level Set Method.

Koichi Hirayama, Yasuhide Tsuji, Shintaro Yamasaki, Shinji Nishiwaki

IEICE Trans. Electron., 2011

2007

Application of Topology Optimization to H-Plane Waveguide Component.

Koichi Hirayama, Yasuhide Tsuji, Tsuyoshi Nomura, Kazuo Sato, Shinji Nishiwaki

IEICE Trans. Electron., 2007

2006

Curvilinear triangular-prism element for computation of band structure in photonic crystal slab.

Koichi Hirayama, Masatoshi Kanou, Yasuhide Tsuji, Masanori Koshiba

IEICE Electron. Express, 2006