ArticleScientific reports2022
Dual-comb cavity ring-down spectroscopy.
Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Freely controllable single-optical-frequency comb for highly sensitive cavity ring-down spectroscopy.Scientific reports · 2026Article
- Direct Frequency Comb Cavity Ring-Down Spectroscopy Using Vernier Filtering.The journal of physical chemistry. A · 2025Article
- Article
- Two species-one wavelength detection based on selective optical saturation spectroscopy.Scientific reports · 2023Article
Corrections and comments
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Authors and funding
13 authors.
Funding
Abstract
Cavity ring-down spectroscopy is a ubiquitous optical method used to study light-matter interactions with high resolution, sensitivity and accuracy. However, it has never been performed with the multiplexing advantages of direct frequency comb spectroscopy without significantly compromising spectral resolution. We present dual-comb cavity ring-down spectroscopy (DC-CRDS) based on the parallel heterodyne detection of ring-down signals with a local oscillator comb to yield absorption and dispersion spectra. These spectra are obtained from widths and positions of cavity modes. We present two approaches which leverage the dynamic cavity response to coherently or randomly driven changes in the amplitude or frequency of the probe field. Both techniques yield accurate spectra of methane-an important greenhouse gas and breath biomarker. When combined with broadband frequency combs, the high sensitivity, spectral resolution and accuracy of our DC-CRDS technique shows promise for applications like studies of the structure and dynamics of large molecules, multispecies trace gas detection and isotopic composition.
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Registered trials
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