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Fourier Transform Multi-pass Photothermal Spectroscopy Using a Quantum Cascade Laser Frequency Comb

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Abstract

Fourier transform photothermal spectroscopy is demonstrated in a multi-pass configuration using a quantum cascade laser frequency comb operating between 7.7 and 8.2 µm. Broadband detection of nitrous oxide in the mid-infrared is performed as proof-of-concept.

© 2024 The Author(s)

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