激光与光电子学进展, 2018, 55 (6): 061405, 网络出版: 2018-09-11
干涉偏差对四束圆偏振光干涉的影响 下载: 813次
Influence of Interference Deviation on Four-Beam Interference with Circular Polarization
摘要
通过理论计算和MATLAB模拟讨论四束右旋圆偏振干涉光干涉后的光强度分布。当四束干涉光对称分布时,可得均匀的二维周期性强度分布。理论研究发现,干涉强度的最大值出现在3条直线斜率分别为S 1=+1,S 2=¥,S 3=-1的交点处,且在x 和y 方向存在一定的周期dx=dy=λ /sin θ 。入射角的不同只改变周期的大小,不改变干涉强度分布的图样。研究发现,当其中一束干涉光发生偏差(θ 1,α 1)时,决定干涉强度的其中2条直线的斜率Sl (l =1,2)以及x 和y 方向的周期dxl ,dyl (l =1,2,3)均受影响。
Abstract
The interference intensity distribution of four-beam interference with right-hand circular polarization is theoretically studied and simulated with MATLAB. The impact of incident angle on the intensity distribution of interference is studied. The results show that there is a uniform two-dimensional periodic intensity distribution when four beams show symmetrical distribution. The peak intensity appears at the intersection of three lines with the slopes of S1=+1, S2=¥, S3=-1, respectively. And there are certain periods dx=dy=λ/sin θ in the x and y directions. When incidence angle θ changes, the period of the pattern changes accordingly but not the symmetricity of pattern. However, when the incident angle or azimuthal angle (θ1,α1) changes, both the slopes Sl(l=1,2) and periods dxl,dyl(l=1,2,3) change.
吴晓. 干涉偏差对四束圆偏振光干涉的影响[J]. 激光与光电子学进展, 2018, 55(6): 061405. Xiao Wu. Influence of Interference Deviation on Four-Beam Interference with Circular Polarization[J]. Laser & Optoelectronics Progress, 2018, 55(6): 061405.