1 June 1990 Plasma kinetic study of high-power, high-repetition-rate, closed-cycle transversely excited CO2 laser
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Proceedings Volume 1225, High-Power Gas Lasers; (1990) https://doi.org/10.1117/12.18503
Event: OE/LASE '90, 1990, Los Angeles, CA, United States
Abstract
We have developed a comprehensive theoretical model dealing with both variations of laser output energy and laser gas composition as a function of the repetitive laser pulse in order to evaluate the performance characteristics of the high-power, closed-cycle transversely excited (TE) CO2 laser. According to our analysis, the number of CO2 molecules decomposed per unit input energy of single discharge pulse was calculated to be 1.45x1017 molecules/J for the laser gas mixture of C02/N2/He=l5/l5/70. The number of N2 molecules decomposed per unit input energy density was calculated to be about 24000 times smaller than that of CO2. Our model theoretically predicted for the first time that a very little quantity of water vapor (<50 ppm) in the laser gas dramatically decreased the equilibrium CO2 decomposition level, resulting in increasing the laser output energy.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hirokazu Hokazono, Minoru Obara, "Plasma kinetic study of high-power, high-repetition-rate, closed-cycle transversely excited CO2 laser", Proc. SPIE 1225, High-Power Gas Lasers, (1 June 1990); doi: 10.1117/12.18503; https://doi.org/10.1117/12.18503
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