24 May 1993 Dependence of NO2 degenerate four-wave-mixing signals on buffer gas pressure
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Proceedings Volume 1862, Laser Applications in Combustion and Combustion Diagnostics; (1993) https://doi.org/10.1117/12.145689
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States
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.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
John D. Garman, John D. Garman, Derek Dunn-Rankin, Derek Dunn-Rankin, } "Dependence of NO2 degenerate four-wave-mixing signals on buffer gas pressure", Proc. SPIE 1862, Laser Applications in Combustion and Combustion Diagnostics, (24 May 1993); doi: 10.1117/12.145689; https://doi.org/10.1117/12.145689
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