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Proceedings Paper

Optical bleaching kinetics of ethylene observed with pulsed infrared laser-excited photothermal lens spectroscopy
Author(s): Stephen E. Bialkowski; Zhi-fang He
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Paper Abstract

An overview of the practice of accurate pulsed laser photothermal spectroscopy and the model relating the observed photothermal lens spectroscopy signal to the nonlinear absorption coefficients is given. Details of the assumptions used to derive the vibrational energy state model and the probable excited states involved in the kinetic saturation are discussed. Saturation irradiance and related parameters for ethylene in Ar, He, and N2 buffer gases are given and discussed in light of vibrational relaxation rate constants.

Paper Details

Date Published: 27 July 1994
PDF: 8 pages
Proc. SPIE 2138, Longer Wavelength Lasers and Applications, (27 July 1994); doi: 10.1117/12.181353
Show Author Affiliations
Stephen E. Bialkowski, Utah State Univ. (United States)
Zhi-fang He, Utah State Univ. (United States)

Published in SPIE Proceedings Vol. 2138:
Longer Wavelength Lasers and Applications
Gabor Patonay, Editor(s)

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