University of Illinois Urbana-Champaign

High-temperature methane absorption with a dual frequency comb spectrometer

Malarich, Nathan A.

Content Files
1491855.pptx
4065.pdf

Permalink

https://hdl.handle.net/2142/104483

Description

Title
High-temperature methane absorption with a dual frequency comb spectrometer
Author(s)
Malarich, Nathan A.
Contributor(s)
  • Rieker, Gregory B.
  • Drouin, Brian
  • Sung, Keeyoon
  • Coburn, Sean
  • Yun, David
Issue Date
2019-06-18
Keyword(s)
Small molecules
Date of Ingest
  • 2019-07-15T22:17:01Z
  • 2020-01-25T19:30:10Z
Abstract
Quantitative measurements of combustion system fueling and hot-Jupiter exoplanets require accurate methane absorption data at elevated temperatures. The ExoMol and HITRAN spectral databases in the near-infrared 6500-9000cm-1 range are based on the 10to10 potential energy surface, and the 80K and 296K empirical WKLMC linelist, respectively, which do not empirically constrain all elevated-temperature behavior. We present spectra of the near-infrared methane overtone band around 1400nm at temperatures from 296 K to 900 K. The spectra are taken using a three-zone tube furnace and a dual-frequency comb spectrometer with 600 cm-1 bandwidth and .00667cm-1 resolution. These measurements are targeted toward providing a compact, accurate methane absorption linelist for 300-900K.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
text
Genre of Resource
Conference Paper / Presentation
Language
eng
Permalink
http://hdl.handle.net/2142/104483
DOI
https://doi.org/10.15278/isms.2019.TI09
Copyright and License Information
Copyright 2019 Nathan A. Malarich

Owning Collections

Abstracts & Presentations - 2019 International Symposium on Molecular Spectroscopy PRIMARY