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Proceedings Paper

Vibrational-resonance self-broadening of IR absorption bands in gaseous fluorides
Author(s): Andrei P. Burtsev; Ivan M. Kislyakov; Tatyana D. Kolomiitsova
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Paper Abstract

A new spectroscopic effect of strong self-action was observed for the first time in molecular gases for vibrational transitions to combined states, in which the strongly IR active v3 mode is involved. Transformations of the v3, v1 + v3, v2 + v4 band shapes of 32SF6, 34SF6, 12CF4, 13CF4, 14NF3 upon variation of density (T equals 293 K) were studied for pure gas (p < 70 Amagat) and its dilute mixtures with Ar, Kr, Xe (pmixt < 150 Amagat). A strong linear dependence of the second spectral moment M2 on density for v3 and v1 + v3 bands in pure gases was observed, whereas no effect was found in dilute mixtures and for v2 + v4 band in pure gases.

Paper Details

Date Published: 25 January 2000
PDF: 5 pages
Proc. SPIE 4063, 13th Symposium and School on High-Resolution Molecular Spectroscopy, (25 January 2000); doi: 10.1117/12.375385
Show Author Affiliations
Andrei P. Burtsev, St. Petersburg State Univ. (Russia)
Ivan M. Kislyakov, St. Petersburg State Univ. (Russia)
Tatyana D. Kolomiitsova, St. Petersburg State Univ. (Russia)


Published in SPIE Proceedings Vol. 4063:
13th Symposium and School on High-Resolution Molecular Spectroscopy
Leonid N. Sinitsa, Editor(s)

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