Dual-comb photothermal spectroscopy

doi:10.1038/s41467-022-29865-6

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	Dual-comb photothermal spectroscopy
	Q. Wang; Z. Wang; H. Zhang; S. L. Jiang; Y. Y. Wang; W. Jin and W. Ren
	2022
发表期刊	Nature Communications
卷号	13 期号:1 页码:7
摘要	'Recent developments in spectroscopy have witnessed the establishment of dual-comb techniques. In this work the authors demonstrate dual-comb photothermal spectroscopy providing gas sensing with superfine resolution and high sensitivity Dual-comb spectroscopy (DCS) has revolutionized optical spectroscopy by providing broadband spectral measurements with unprecedented resolution and fast response. Photothermal spectroscopy (PTS) with a pump-probe configuration offers a highly sensitive gas sensing method, which is normally performed using a single-wavelength pump laser. The merging of PTS with DCS may enable a spectroscopic method by taking advantage of both technologies, which has never been studied yet. Here, we report dual-comb photothermal spectroscopy (DC-PTS) by passing dual combs and a probe laser through a gas-filled anti-resonant hollow-core fiber, where the generated multi-heterodyne modulation of the refractive index is sensitively detected by an in-line interferometer. As an example, we have measured photothermal spectra of acetylene over 1 THz, showing a good agreement with the spectral database. Our proposed DC-PTS provides opportunities for broadband gas sensing with super-fine resolution and high sensitivity, as well as with a small sample volume and compact configuration.
DOI	10.1038/s41467-022-29865-6
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收录类别	sci
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/66576
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Q. Wang,Z. Wang,H. Zhang,et al. Dual-comb photothermal spectroscopy[J]. Nature Communications,2022,13(1):7.
APA	Q. Wang,Z. Wang,H. Zhang,S. L. Jiang,Y. Y. Wang,&W. Jin and W. Ren.(2022).Dual-comb photothermal spectroscopy.Nature Communications,13(1),7.
MLA	Q. Wang,et al."Dual-comb photothermal spectroscopy".Nature Communications 13.1(2022):7.

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