Cavity Ring-down Spectroscopy With Interband Cascade Optical Frequency Combs

Markus, Charles R.

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https://hdl.handle.net/2142/116805 Copy

Description

Title

Cavity Ring-down Spectroscopy With Interband Cascade Optical Frequency Combs

Author(s)

Markus, Charles R.

Contributor(s)

• Okumura, Mitchio
• Bagheri, Mahmood
• Meyer, Jerry R.
• Frez, Clifford
• Vurgaftman, Igor
• Canedy, Chadwick L.
• Sterczewski, Lukasz A.
• Ober, Douglas
• Chen, TzuLing

Issue Date

2022-06-22

Keyword(s)

Instrument/Technique Demonstration

Abstract

The spectrum of an optical frequency comb is composed of many equidistant lines, which is a natural match for enhancement cavities. Cavity ring-down spectroscopy is known to be a robust and highly sensitive technique, although it is challenging to implement with optical frequency combs. Here we demonstrate a new approach to performing direct frequency comb cavity ring-down spectroscopy in the CH stretching region using an interband cascade optical frequency comb. These chip-scale devices generate combs with large repetition rates (10 GHz), which enables mode-resolved detection using Vernier spectroscopy. The decay of each comb mode can be obtained as the comb is being scanned, providing sensitive and broadband detection. Here we demonstrate the effectiveness of this technique for trace gas detection and discuss the overall performance.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Handle URL

https://hdl.handle.net/2142/116805

DOI

https://doi.org/10.15278/isms.2022.WJ07

Copyright and License Information

Copyright 2022 held by the authors

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