Considering the thermodynamical fluid mechanics in the gain medium and laser kinetic processes, a three-dimensional theoretical model of an exciplex-pumped Cs vapor laser with longitudinal and transverse gas flow is established. The slope efficiency of laser calculated by the model shows good agreement with the experimental data. The comprehensive three-dimensional distribution of temperature and particle density of Cs is depicted. The influence of pump intensity, wall temperature, and fluid velocity on the laser output performance is also simulated and analyzed in detail, suggesting that a higher wall temperature can guarantee a higher output laser power while causing a more significant heat accumulation in the cell. Compared with longitudinal gas flow, the transverse flow can improve the output laser power by effectively removing the generated heat accumulation and alleviating the temperature gradient in the cell.

中文翻译：

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具有横向和纵向气流的三维激态泵浦流体 Cs 蒸汽激光器的建模

考虑增益介质中的热力学流体力学和激光动力学过程，建立了具有纵向和横向气流的激子泵浦Cs蒸气激光器的三维理论模型。模型计算的激光斜率效率与实验数据吻合较好。描绘了 Cs 的温度和粒子密度的综合三维分布。还详细模拟和分析了泵浦强度、壁温和流体速度对激光输出性能的影响，表明更高的壁温可以保证更高的输出激光功率，同时在电池中引起更显着的热量积累。与纵向气流相比，