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Measurement of the vibrational energy-transfer rates in mixtures of polyatomic molecules

✍ Scribed by J. S. Bakos; P. N. Ignácz; A. Lörincz; Zs. Sörlei; J. Szigeti

Publisher
Springer
Year
1993
Tongue
English
Weight
493 KB
Volume
57
Category
Article
ISSN
0721-7269

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✦ Synopsis

The pressure coefficient of the vibrational deexcitation of methanol molecules caused by collisions with NH 3, CO 2, SF 6 molecules and He atoms is measured by infrared-far-infrared double-resonance spectroscopy. Large coefficients are measured for those buffer gases which increase the output power of far-infrared lasers. For other buffer gases such as NH 3 and CO 2 tile measured coefficients are zero within the limits of experimental error. The relevance to measurements on the photoacoustic trace-gas analysis is discussed.

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