Cross-relaxation dynamics on anomalous saturation processes in low pressure supersonic cw HF chemical laser amplifier |
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| Authors: | Anfu Fan Zhi Gao Xin Zhou |
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| Institution: | (1) Department of Opto-Electronics Science and Technology, Sichuan University, 610064 Chengdu, China;(2) Institute of Mechanics, Chinese Academy of Sciences, 100080 Beijing, China;(3) China Centre of Advanced Science and Technology (World Laboratory), P. O. Box 8730, 100080 Beijing, China |
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| Abstract: | It is assumed that both translational and rotational nonequilibrium cross-relaxations play a role simultaneoulsy in low pressure
supersonic cw HF chemical laser amplifier. For two-type models of gas flow medium with laminar and turbulent flow diffusion
mixing, the expressions of saturated gain spectrum are derived respectively, and the numerical calculations are performed
as well. The numerical results show that turbulent flow diffusion mixing model is in the best agreement with the experimental
result.
Project supported by the National Natural Science Foundation of China (Grant No. 19474036) and by the Laboratory of Hih-temperature
Gas Dynamics. Insititute of Mechanics, Chinese Academy of Sciences (Grant No. KJ951-E-202). |
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| Keywords: | chemical laser tranrlational and rotational nonequilibrium laminar and turbulent flow mixing saturated grin spectrum |
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