强激光积分变换镜的光学性能及相关热作用

根据标量衍射理论研究一种常用积分镜，导出任意给定入射光束时在光学系统后不同空间平面上光束的强度分布，给出模拟计算实例，讨论经积分镜变换后光束的热作用。研究结果表明，变换光束带有强烈的干涉及衍射结构，入射光束分布及工作平面位置的选择对变换结果有显著影响。对于导热性能较好的材料，变换光束的干涉和衍射结构的热影响可以忽略，但是，配置与积分镜相应的模拟计算软件是提高使用质量的必要措施。

Optical Capability and Relative Heat Action of a High-power Integrating Mirror

An integrating mirror in common use was studied based on scalar diffraction theory and for arbitrary incidence laser beams,intensity distributions in different spatial planes behind an optical system are derived.Finally,simulated calculation examples are given and heat action of laser beams transformed by an integrating mirror is discussed.The results have shown that the transformed light beam has an obviously interferential and diffraction structure,and the distribution of incident laser beam and the choice of position of working plane have a great influence on the transformed light beam.For the material with a good thermal conductivity,the effects of the interferential and diffraction structure of laser beam can be ignored in the research of heat action;however,providing the calculating software to model integrating mirror system is important to improve its utilizable quality.