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Proceedings Paper

Fourier Transform Infrared (FTIR) Emission Measurements Of Nonequilibrium Vibrational Excitation
Author(s): C. A. DeJoseph
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Paper Abstract

A Michelson interferometer with on-line data processing has been used to obtain infrared emission spectra of carbon monoxide under the non-equilibrium conditions present in a low pressure gas discharge. The advantages of a Fourier Transform Spectrometer over a conventional IR spectrometer make it ideally suited for rapid acquisition of the weak, broad band emission spectra encountered in this type of experiment. A nonlinear least-squares analysis together with a multiple linear regression analysis have been used to derive both the rotational temperature and the non-equilibrium vibrational populations from the low resolution first overtone CO spectrum. Under some discharge conditions emission is observed from 36 vibrational levels of molecule.

Paper Details

Date Published: 29 October 1981
PDF: 3 pages
Proc. SPIE 0289, 1981 Intl Conf on Fourier Transform Infrared Spectroscopy, (29 October 1981); doi: 10.1117/12.932174
Show Author Affiliations
C. A. DeJoseph, Air Force Wright Aeronautical Laboratories (United States)

Published in SPIE Proceedings Vol. 0289:
1981 Intl Conf on Fourier Transform Infrared Spectroscopy
Hajime Sakai, Editor(s)

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