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首页> 外文会议>Atomic and Molecular Pulsed Lasers VI >Optimization of initial parameters of XeCL laser pumping by changing of pulse duration using computer modeling
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Optimization of initial parameters of XeCL laser pumping by changing of pulse duration using computer modeling

机译：通过计算机建模改变脉冲持续时间，优化XeCL激光泵浦的初始参数

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摘要

This paper presents simulation results for three modes of pumping of a XeCl-laser under radiation pulse duration of 10, 30, and 50 ns. Temporal evolutions of pump power and laser radiation, energy of pumping and lasing, densities of electrons and HCl(ⅰ) molecules in the ground and vibrationally excited states have been simulated for each mode. Rate dependences of the processes of XeCl~(**) excimer molecules formation, such molecules quenching by electrons and heavy particles of plasma N(ⅰ), and induced radiation rate vs. time have been also obtained. For two modes of pumping with radiation durations of 30 ns and 50 ns, simulation data are compared with experimental results taken from the literature available. The simulated temporal evolutions of discharge current, radiation power, and lasing energy are in good agreement with the experimental results. There are no literature data regarding a laser with a pulse duration of 10 ns. The properties of laser operation at decreased pumping duration up to 10 ns are presented. Kinetic processes effect on radiant energy and laser efficiency has been analyzed. It follows from the analysis of calculation results that formation of excimer molecules takes place with high efficiency. Quenching processes of excimer molecules by electrons and heavy particles is the main factor leading to decrease in radiant energy, and therefore laser efficiency.
机译：本文介绍了在10、30和50 ns辐射脉冲持续时间下XeCl激光器的三种泵浦模式的仿真结果。对于每种模式，已经模拟了泵浦功率和激光辐射的时间演变，泵浦和发射激光的能量，基态中电子和HCl（in）分子的密度以及振动激发态。还获得了XeCl〜（**）准分子分子形成过程的速率依赖性，这种分子被电子和等离子体N（N）的重粒子猝灭，并且诱导的辐射速率随时间变化。对于辐射持续时间为30 ns和50 ns的两种泵浦模式，将模拟数据与从现有文献中获得的实验结果进行了比较。放电电流，辐射功率和激光能量的模拟时间演变与实验结果非常吻合。没有关于脉冲持续时间为10 ns的激光器的文献资料。给出了在长达10 ns的降低泵浦持续时间下的激光操作特性。分析了动力学过程对辐射能和激光效率的影响。通过对计算结果的分析可以得出，准分子的形成是高效的。电子和重粒子对准分子的猝灭过程是导致辐射能降低，从而导致激光效率降低的主要因素。

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