Ultra-broadband dual-comb spectroscopy across 1.0-1.9 μm

Sho Okubo; Kana Iwakuni; Hajime Inaba; Kazumoto Hosaka; Atsushi Onae; Hiroyuki Sasada; Feng Lei Hong

doi:10.7567/APEX.8.082402

Ultra-broadband dual-comb spectroscopy across 1.0-1.9 μm

Sho Okubo, Kana Iwakuni, Hajime Inaba, Kazumoto Hosaka, Atsushi Onae, Hiroyuki Sasada, Feng Lei Hong

物理学科

研究成果: Article › 査読

157 被引用数 (Scopus)

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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 to each other. This ultrabroad-wavelength bandwidth is realized by setting the difference between the repetition rates of the two combs to 7.6 Hz using the sub-Hz-linewidth fiber combs. The recorded spectrum contains five vibration-rotation bands of C₂H₂, CH₄, and H₂O at different wavelengths across the whole spectrum. The determined transition frequencies of C₂H₂ agree with those from the previous sub-Doppler resolution measurement of individual lines using CW lasers within 2 MHz.

本文言語	English
論文番号	082402
ジャーナル	Applied Physics Express
巻	8
号	8
DOI	https://doi.org/10.7567/APEX.8.082402
出版ステータス	Published - 2015 8月 1

ASJC Scopus subject areas

工学（全般）
物理学および天文学（全般）

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10.7567/APEX.8.082402

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title = "Ultra-broadband dual-comb spectroscopy across 1.0-1.9 μm",

abstract = "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 to each other. This ultrabroad-wavelength bandwidth is realized by setting the difference between the repetition rates of the two combs to 7.6 Hz using the sub-Hz-linewidth fiber combs. The recorded spectrum contains five vibration-rotation bands of C2H2, CH4, and H2O at different wavelengths across the whole spectrum. The determined transition frequencies of C2H2 agree with those from the previous sub-Doppler resolution measurement of individual lines using CW lasers within 2 MHz.",

author = "Sho Okubo and Kana Iwakuni and Hajime Inaba and Kazumoto Hosaka and Atsushi Onae and Hiroyuki Sasada and Hong, {Feng Lei}",

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AU - Okubo, Sho

AU - Iwakuni, Kana

AU - Inaba, Hajime

AU - Hosaka, Kazumoto

AU - Onae, Atsushi

AU - Sasada, Hiroyuki

AU - Hong, Feng Lei

PY - 2015/8/1

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N2 - 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 to each other. This ultrabroad-wavelength bandwidth is realized by setting the difference between the repetition rates of the two combs to 7.6 Hz using the sub-Hz-linewidth fiber combs. The recorded spectrum contains five vibration-rotation bands of C2H2, CH4, and H2O at different wavelengths across the whole spectrum. The determined transition frequencies of C2H2 agree with those from the previous sub-Doppler resolution measurement of individual lines using CW lasers within 2 MHz.

AB - 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 to each other. This ultrabroad-wavelength bandwidth is realized by setting the difference between the repetition rates of the two combs to 7.6 Hz using the sub-Hz-linewidth fiber combs. The recorded spectrum contains five vibration-rotation bands of C2H2, CH4, and H2O at different wavelengths across the whole spectrum. The determined transition frequencies of C2H2 agree with those from the previous sub-Doppler resolution measurement of individual lines using CW lasers within 2 MHz.

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Ultra-broadband dual-comb spectroscopy across 1.0-1.9 μm

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