熔石英亚表面修复形貌对光场的调制  

Modulation on incident laser induced by repaired subsurface defect in fused silica

作　　者：张彦垒[1,2] 肖峻[1] 袁晓东[2] 贺少勃[2] 蒋勇[1,2] 刘春明[1,2] 

机构地区：[1]电子科技大学光电信息学院,成都610054 [2]中国工程物理研究院激光聚变研究中心,四川绵阳621900

出　　处：《强激光与粒子束》2012年第8期1806-1810,共5页High Power Laser and Particle Beams

基　　金：国防预研基金项目(426020606)

摘　　要：基于标量衍射理论,计算了熔石英亚表面高斯型修复形貌对于光场的调制,用Matlab对结果进行了仿真并与实验结果进行了比较。所得结果表明,二者有较好的一致性,一定尺度的高斯面型修复形貌会对光场产生调制,且调制度随光场传输位置变化,通过适当选择后续光学元件位置,可降低光场调制造成光学元件损伤的风险。The effect of the repaired subsurface defect with Gaussian profile in fused silica on incident laser is studied according to the scalar diffraction theory.The matlab simulation results agree with the experiment results.It is shown that modulation on incident laser is produced by the repaired site and varies with the light propagation distance.The modulation may cause damage of the downstream optical components.However,the damage risk can be reduced by installing the downstream optical components at appropriate positions.

关 键 词：光调制度 激光修复 标量衍射理论 高斯面型 熔石英 

分 类 号：TN247[电子电信—物理电子学]