University of Illinois Urbana-Champaign

PRECISION FREQUENCY MEASUREMENT OF N2O TRANSITIONS NEAR 4.5 μm AND ABOVE 150 μm

Drouin, Brian

Content Files
TB06_Abstract.pdf
TB06_Abstract.txt
TB06_Presentation.pptx

Permalink

https://hdl.handle.net/2142/50992

Description

Title
PRECISION FREQUENCY MEASUREMENT OF N2O TRANSITIONS NEAR 4.5 μm AND ABOVE 150 μm
Author(s)
Drouin, Brian
Contributor(s)
  • Daly, Adam M.
  • Shy, Jow-Tsong
  • Chen, Hsuan Chen
  • Chen, Shih-En
  • Chang, Chun-Hung
  • Ting, Wei-Jo
Issue Date
2014-06-17
Keyword(s)
Instrument/Technique Demonstration
Date of Ingest
  • 2014-09-17T16:55:43Z
  • 2015-04-14T18:42:29Z
Abstract
Frequency measurements are given for the 10$^0$0-00$^0$0 band of N$_2$O near 4.5 $\mu$m and for pure rotational transitions beyond 151.5 $\mu$m. The infrared measurements utilize a periodically-poled lithium niobate (PPLN) based difference frequency generation (DFG) source locked to the saturated absorption center of an N$_2$O absorption line. The DFG frequency is calibrated by an optical frequency comb and an iodine hyperfine transition. We report 44 transitions ranging from $J$ = 1 - 100 for both the $P-$ and $R-$ branches and the accuracy is better than 10 kHz for most transitions. In addition, 175 pure rotational transitions have been measured including 33 measurement with sub-Doppler precision ($<$ 3 kHz), and 142 Doppler limited measurements. These are combined with other precision rotational and vibrational measurements to provide improved quantum mechanical parameters as well as frequency calibration tables for the N$_2$O bands near 4.5 $\mu$m.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
text
Genre of Resource
Conference Paper / Presentation
Language
English
Permalink
http://hdl.handle.net/2142/50992
DOI
https://doi.org/10.15278/isms.2014.TB06
Copyright and License Information
Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License. http://creativecommons.org/licenses/by/4.0/

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Abstracts & Presentations - 2014 International Symposium on Molecular Spectroscopy PRIMARY