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10 October 2020 Molecular spectroscopy with optical frequency combs
Ming Yan
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Proceedings Volume 11544, High-Power Lasers and Applications XI; 1154404 (2020) https://doi.org/10.1117/12.2574898
Event: SPIE/COS Photonics Asia, 2020, Online Only
Abstract
Optical frequency comb has revolutionized the approach to molecular spectroscopy. Here, dual-comb spectroscopy with two asynchronous electro-optic frequency combs tunable in the mid-infrared molecular fingerprint region will be reported for molecular sensing with sub-Doppler-limited spectral resolution and broad bandwidth (more than several THz within a single-shot measurement). Also a three-dimensional (3D) hyperspectral imaging technique based on femtosecond laser filamentation will be demonstrated. The feasibility of laser-induced filamentation for simultaneous detection and identification of multiple gas-phase species in a flame and the potential of the technique for information-rich 3D hyperspectral imaging with both high spatial and spectral resolution will be discussed.
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Ming Yan "Molecular spectroscopy with optical frequency combs", Proc. SPIE 11544, High-Power Lasers and Applications XI, 1154404 (10 October 2020); https://doi.org/10.1117/12.2574898
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KEYWORDS
Molecular spectroscopy
Frequency combs
3D image processing
Spectral resolution
Spectroscopy
3D metrology
Hyperspectral imaging
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