162 citations · 1.1k across the 21 of their papers we have counts for
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Ultra-precise determination of thicknesses and refractive indices of optically thick dispersive materials by dual-comb spectroscopy
Kana A. Sumihara, Sho Okubo, Makoto Okano +2
Precise measurements of the geometrical thickness of a sample and its refractive index are important for materials science, engineering, and medical diagnosis. Among the possible n…
Ultra-broadband dual-comb spectroscopy across 1.0-1.9 μm
Sho Okubo, Kana Iwakuni, Hajime Inaba +4
We have carried out dual-comb spectroscopy and observed in a simultaneous acquisition a 140-THz-wide spectrum from 1.0 to 1.9 μm using two fiber-based frequency combs phase-locked…
A compact iodine-laser operating at 531 nm with stability at the 10 level and using a coin-sized laser module
Takumi Kobayashi, Daisuke Akamatsu, Kazumoto Hosaka +6
We demonstrate a compact iodine-stabilized laser operating at 531 nm using a coin-sized light source consisting of a 1062-nm distributed-feedback diode laser and a frequency-doubli…
Real-time absolute frequency measurement of continuous-wave terahertz wave based on dual terahertz combs of photocarriers with different frequency spacings
Takeshi Yasui, Kenta Hayashi, Ryuji Ichikawa +7
Real-time measurement of the absolute frequency of continuous-wave terahertz (CW-THz) waves is required for characterization and frequency calibration of practical CW-THz sources.…
Adaptive sampling dual terahertz comb spectroscopy using free-running dual femtosecond lasers
Takeshi Yasui, Ryuji Ichikawa, Yi-Da Hsieh +9
Dual terahertz (THz) comb spectroscopy is a promising methods for high accuracy, high resolution, and broadband THz spectroscopy because the mode-resolved THz comb spectrum possess…
Gapless dual-comb spectroscopy in terahertz region
Takeshi Yasui, Yi-Da Hsieh, Yuki Iyonaga +6
We demonstrated combination of gapless terahertz (THz) comb with dual-comb spectroscopy, namely gapless dual-THz-comb spectroscopy, to achieve the spectral resolution equal to widt…