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University of Illinois Urbana-Champaign

OPTICAL FREQUENCY COMB CAVITY ENHANCED VERNIER SPECTROSCOPY FOR THE DETECTION OF TRANSIENT SPECIES

Bashiri, Termeh

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https://hdl.handle.net/2142/122506

Description

Title
OPTICAL FREQUENCY COMB CAVITY ENHANCED VERNIER SPECTROSCOPY FOR THE DETECTION OF TRANSIENT SPECIES
Author(s)
Bashiri, Termeh
Contributor(s)
  • Frez, Clifford
  • Vurgaftman, Igor
  • Canedy, Chadwick L
  • Sterczewski, Lukasz A.
  • Ober, Douglas
  • Chen, Tzu-Ling
  • Markus, Charles R.
  • Okumura, Mitchio
  • Bagheri, Mahmood
  • Meyer, Jerry R
Issue Date
2023-06-20
Keyword(s)
Instrument/Technique Demonstration
Abstract
When paired with cavity enhancement, interband cascade optical frequency combs offer a highly sensitive method for broadband spectroscopy. We present a new method for the detection of UV photolysis-generated transient species using cavity enhanced Vernier spectroscopy with a mid-IR interband cascade frequency comb. The cavity is used to generate an enhanced spectrum by extending the pathlength. This technique allows for the real-time high-resolution detection of short-lived species. We will discuss the benchmark reaction between hydroxymethyl radicals and oxygen to form formaldehyde, as well as the application of this new technique for the detection of resonance-stabilized radicals.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
Text
Genre of Resource
Conference Paper / Presentation
Language
eng
Handle URL
https://hdl.handle.net/2142/122506
DOI
https://doi.org/10.15278/isms.2023.6979

Owning Collections

Abstracts & Presentations - 2023 International Symposium on Molecular Spectroscopy PRIMARY