University of Illinois Urbana-Champaign

Cavity Ring-down Spectroscopy With Interband Cascade Optical Frequency Combs

Markus, Charles R.

Content Files
WJ07_1.pptx
6351.pdf

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

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
Genre of Resource
Conference Paper / Presentation
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

Owning Collections

Abstracts & Presentations - 2022 International Symposium on Molecular Spectroscopy PRIMARY