透镜与相位板在马赫-曾德涡旋光干涉中的影响分析  

Analysis on the influence of lens and phase plates on Mach-Zehnder vortex optical interference

作　　者：陈秀艳[1] 安婷雯 王曦欧 CHEN Xiuyan;AN Tingwen;WANG Xiou(College of Physical Science and Technology,Shenyang Normal University,Shenyang 110034,China)

机构地区：[1]沈阳师范大学物理科学与技术学院,沈阳110034

出　　处：《沈阳师范大学学报（自然科学版）》2023年第1期92-96,共5页Journal of Shenyang Normal University:Natural Science Edition

基　　金：国家自然科学基金青年基金资助项目(61603265);教育部产学合作协同育人项目(220502116230206,220606517061317);研究生教学改革项目(YJSJG320210102);沈阳师范大学教学改革项目(JG2021-YB063)的支持。

摘　　要：马赫-曾德干涉仪是产生干涉光与涡旋光的重要器件。为形象展示干涉图样并分析相位板与聚焦透镜对光场性能的影响,应用Virtual Lab软件进行模拟分析,在光路中分别加入不同数量的竖直条纹相位板与径向螺旋相位板,并通过聚焦透镜对干涉光相位进行调节。结果表明,在引入竖直条纹相位板后,相位板数量越多,干涉条纹间距越大,聚焦透镜可以将条纹相位分布转换为圆环相位分布。在引入一块拓扑荷值l=10的螺旋相位板后,干涉条纹成为树杈型场分布和相位分布。在此基础上,引入第2块相位板,干涉图样成为涡旋干涉场,经透镜聚焦,干涉场相位分布均为涡旋状。The Mach-Zehnder interferometer is an important device for generating interference light and vortex light.In order to display the interference pattern and analyze the influence of the phase plates and focusing lens on optical field performance,the Virtual Lab software has been applied in this paper for simulation and analysis.Different numbers of vertical fringe phase plates and radial spiral phase plates are added to the optical paths respectively,and the interference lights phase is adjusted by the focusing lens.The results show that when the vertical fringe phase plates are inserted,the more phase plates there are,and the larger the spacing of interference fringes will be.And the focusing lens can convert the fringe phase distribution into the ring phase distribution.After the introduction of a spiral phase plate with topological charge l=10,the interference field distribution and phase distribution fringes are the shape of tree branches.On this basis,the second phase plate is introduced,and the interference pattern become the vortex interference field.The phase distribution is vortex-like after focusing through the lens.

关 键 词：马赫-曾德干涉仪 相位板 涡旋光 相位图 光场分布 

分 类 号：O469[理学—凝聚态物理]