Fourier Transform Infrared (FTIR) Emission Measurements Of Nonequilibrium Vibrational Excitation

C. A. DeJoseph Jr.

doi:10.1117/12.932174

29 October 1981 Fourier Transform Infrared (FTIR) Emission Measurements Of Nonequilibrium Vibrational Excitation

C. A. DeJoseph Jr.

Proceedings Volume 0289, 1981 Intl Conf on Fourier Transform Infrared Spectroscopy; (1981) https://doi.org/10.1117/12.932174
Event: 1981 International Conference on Fourier Transform Infrared Spectroscopy, 1981, Columbia, United States

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.

Citation Download Citation

C. A. DeJoseph Jr. "Fourier Transform Infrared (FTIR) Emission Measurements Of Nonequilibrium Vibrational Excitation", Proc. SPIE 0289, 1981 Intl Conf on Fourier Transform Infrared Spectroscopy, (29 October 1981); https://doi.org/10.1117/12.932174

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