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Proceedings Paper

Algebraic approximation for a line halfwidth as a function of collision broadening and narrowing parameters
Author(s): Victor P. Kochanov; Igor V. Ptashnik
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Paper Abstract

An algebraic approximation for a line halfwidth at the half- maximum ((delta) ) was obtained from the calculated values of (delta) , which depends on the collision broadening and narrowing parameters and the Doppler halfwidth. Both the hard and soft collision models describing the effect of velocity-changing collisions were approximated. The mean discrepancy between the approximated and exact values of (delta) does not exceed 0.1 divided by 0.15%. A simple criterion was developed which allows one to judge about the correspondence of the experimental dependence of (delta) on buffer gas pressure to hard or soft collision model.

Paper Details

Date Published: 25 January 2000
PDF: 6 pages
Proc. SPIE 4063, 13th Symposium and School on High-Resolution Molecular Spectroscopy, (25 January 2000); doi: 10.1117/12.375387
Show Author Affiliations
Victor P. Kochanov, Institute of Atmospheric Optics (Russia)
Igor V. Ptashnik, Institute of Atmospheric Optics (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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