虚共焦非稳腔腔镜倾斜对光束影响的三维重构  

Three-dimension simulation of the effect of mirror misalignment on beam distributions

作　　者：彭玉峰[1] 吕珍龙[1] 张虎[1] 魏要丽[1] 

机构地区：[1]河南师范大学物理与信息工程学院,新乡453007

出　　处：《激光技术》2005年第3期308-310,共3页Laser Technology

摘　　要：为了直观再现腔镜倾斜对光束分布的影响,用FoxLi数值迭代法及图像重构法,绘得方形镜虚共焦腔在不同倾角下近场及远场光强的三维分布图,并对倾斜后光束特点进行了讨论。结果表明,腔镜倾斜使光束近场分布变差,致使远场光束发生畸变,质量下降。To display the effect of mirror misalignment on beam d istributions more intuitively,Fox-Li iterative diffraction calculation method w as used to solve the Fresnel integral equation and three-dimension figures of e ffected beam were presented.The results indicate the beam in both near and far f ield will be aberrated and simultaneously the beam quality will be deteriorated when misalignment appears.

关 键 词：虚共焦非稳腔 腔镜倾斜 菲涅耳衍射积分 Fox—Li数值迭代 

分 类 号：TN242[电子电信—物理电子学]