Yusuke Hisai

Search for Ultralight Dark Matter from Long-Term Frequency Comparisons of Optical and Microwave Atomic Clocks

Takumi Kobayashi, Akifumi Takamizawa, Daisuke Akamatsu et al. · Physical Review Letters · 2022 · 64 citations · Full text

Natural Sciences, Physics, Cosmology +14

Optical Frequency Metrology Study on Nonlinear Processes in a Waveguide Device for Ultrabroadband Comb Generation

Kazumichi Yoshii, Junia Nomura, Kaho Taguchi et al. · Physical Review Applied · 2019 · 28 citations · Full text

Engineering, Electrical Engineering, Optics +15

Uncertainty Evaluation of an ¹⁷¹Yb Optical Lattice Clock at NMIJ

Takumi Kobayashi, Daisuke Akamatsu, Yusuke Hisai et al. · IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control · 2018 · 25 citations · Full text

Natural Sciences, Physics, Optics +13

Narrow-linewidth and highly stable optical frequency comb realized with a simple electro-optic modulator system in a mode-locked Er:fiber laser

Yu Asahina, Kazumichi Yoshii, Yuko Yamada et al. · Japanese Journal of Applied Physics · 2018 · 18 citations · Full text

Engineering, Electrical Engineering, Optics +16

Development of 8-branch Er:fiber frequency comb for Sr and Yb optical lattice clocks

Yusuke Hisai, Daisuke Akamatsu, Takumi Kobayashi et al. · Optics Express · 2019 · 18 citations · Full text

Engineering, Electrical Engineering, Physics +17