Numerical Analysis of Coupled Hexagonal Resonators in Photonic Crystal Waveguide for Demultiplexing of Wavelength Division Multiplexed Signals. - Itsuki Ishibashi; Hiroshi Maeda (NBiS, 2023)

Optimization of Configuration of Directional Coupler in Hexagonal Resonator in Photonic Crystal. - Itsuki Ishibashi; Hiroshi Maeda (NBiS, 2024)

Automatic Routing by Modulation Frequency of Envelope Pulse Wave in Photonic Crystal Waveguide. - Itsuki Ishibashi; Hiroshi Maeda (EIDWT, 2025)