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Proceedings Paper

Dependence of NO2 degenerate four-wave-mixing signals on buffer gas pressure
Author(s): John D. Garman; Derek Dunn-Rankin
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Paper Abstract

Measurements of degenerate four-wave mixing (DFWM) from NO2 are presented as a function of buffer gas pressure and laser power. The signal strength first decreases and then increases with increasing buffer gas pressure. This dependence on buffer gas pressure is apparently due to the onset of thermal gratings. In the regime where thermal gratings are the dominant source of DFWM signals, the DFWM signal intensity increases as the square of the laser power until saturation.

Paper Details

Date Published: 24 May 1993
PDF: 8 pages
Proc. SPIE 1862, Laser Applications in Combustion and Combustion Diagnostics, (24 May 1993); doi: 10.1117/12.145689
Show Author Affiliations
John D. Garman, Univ. of California/Irvine (United States)
Derek Dunn-Rankin, Univ. of California/Irvine (United States)

Published in SPIE Proceedings Vol. 1862:
Laser Applications in Combustion and Combustion Diagnostics
Larry C. Liou, Editor(s)

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