Determination Of Pressure Broadening And Shifts For The First Overtone 2←0 Of Hcl

Drouin, Brian

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https://hdl.handle.net/2142/50987 Copy

Description

Title

Determination Of Pressure Broadening And Shifts For The First Overtone 2←0 Of Hcl

Author(s)

Drouin, Brian

Contributor(s)

• Coffey, Brennan M.
• Crawford, Timothy J.

Issue Date

2014-06-16

Keyword(s)

Linelists, Lineshapes, Collisions

Abstract

Precise and accurate positions of the line centers of HCl (v = 2 $\leftarrow$ 0) have not been reported for quite some time$^1$, however, using methane as a transferrable standard, we aim to report line positions to an order of magnitude better than previously characterized and enable the use of HCl as a secondary frequency standard. The line centers for the first overtone of (v =2 $\leftarrow$ 0) in the spectral region 5500 - 5900 cm$^{-1}$ have been measured simultaneously with the 2$\nu_3$ band of methane using the JPL Bruker IFS 125HR. The positions are determined through multispectrum analysis to $1\times10^{-5}$ cm$^{-1}$. Further analysis using the multispectrum fitting software Labfit allows the determination of the self-broadening, self-shift and Dicke narrowing parameters to high precision as well. This potential new standard is compared to the HITRAN 2012 line parameters. \\ \\ $^1$ Guelachvilli, G. Opt. Comm. 19, 150-154. (1976).

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

English

Permalink

http://hdl.handle.net/2142/50987

DOI

https://doi.org/10.15278/isms.2014.MK10

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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