Ultra-Low Phase Noise Microwave Generation with 25-GHz Electro-Optics-Modulation Comb. - Atsushi Ishizawa; Tadashi Nishikawa; Kenichi Hitachi; Kenya Hitomi; Hideki Gotoh (OECC/PSC, 2019)

Comprehensive Noise Analysis for Acousto-Optic Measurement of Airborne Sound. - Kenji Ishikawa; Yoshifumi Shiraki; Takehiro Moriya; Atsushi Ishizawa; Kenichi Hitachi; Katsuya Oguri (IEEE Trans. Instrum. Meas., 2024)

Exploring High-Precision Transmission of Optical Reference Frequencies via Wavelength Division Multiplexing. - Kota Nishiyama; Mayuri Nakagawa; Kohjun Koshiji; Masahiro Nakagawa; Hiromitsu Imai; Kenichi Hitachi; Tomoya Akatsuka; Katsuya Oguri; Rie Hayashi (HPSR, 2025)