University of Illinois Urbana-Champaign

Doppler-free Saturated Absorption Spectroscopy Of Ch<sub>4</sub> In The Mid-infrared Region Using A Continuous-wave Optical Parametric Oscillator

Riyadh, S M Shah

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5800.pdf
FE10_5800.pdf

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https://hdl.handle.net/2142/111567

Description

Title
Doppler-free Saturated Absorption Spectroscopy Of Ch4 In The Mid-infrared Region Using A Continuous-wave Optical Parametric Oscillator
Author(s)
Riyadh, S M Shah
Contributor(s)
  • Cheng, Cunfeng
  • Liu, Jinjun
  • Haase, Brianna Paige
  • Haase, Meagan Nicole
  • Telfah, Hamzeh
Issue Date
2021-06-25
Keyword(s)
Atmospheric science
Date of Ingest
  • 2021-09-24T21:10:02Z
  • 2022-01-21T16:08:58Z
Abstract
The fundamentals of XH stretching modes typically lie in the 2,500 – 3,700 cm$^{-1}$ (2.7 - 4.0 $\mu$m) range. Continuous-wave optical parametric oscillators (CW OPOs) enable high-resolution spectroscopy in this region. A Doppler-free saturated absorption spectroscopy apparatus with a high-power, widely tunable CW OPO as the light source has been built in our lab for high-resolution, high-precision spectroscopy of gas-phase molecules. We have obtained the Doppler-free spectrum of the Q branch of the $\nu_3$ band of CH$_4$ in a proof-of-principle experiment. Preliminary results from the experiment will be reported in this talk. A cavity-enhanced two-photon spectroscopy setup using the same CW OPO is under construction.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
Text
Genre of Resource
Conference Paper / Presentation
Language
eng
Permalink
http://hdl.handle.net/2142/111567
DOI
10.15278/isms.2021.FE10

Owning Collections

Abstracts & Presentations - 2021 International Symposium on Molecular Spectroscopy PRIMARY