Simultaneous generation of multiple perfect polarization vortices with selective spatial states in various diffraction orders
Simultaneous generation of multiple perfect polarization vortices with selective spatial states in various diffraction orders
复制标题
在不同衍射级中同时生成具有选择性空间状态的多个完美偏振涡旋
DOI：
10.1364/ol.41.005454
复制
发表时间：
2016-12-01
期刊：
影响因子：
3.6
通讯作者：
Zhai, Yanwang
中科院分区：
文献类型：
--
作者：
Fu, Shiyao;Gao, Chunqing;Zhai, Yanwang
我们展示了一种产生多个完美偏振旋涡（ppv）的方法，这些旋涡在不同衍射阶上具有选择性的空间偏振分布。关键是设计具有各向异性偏振衍射光栅的全息图。在实验中，建立了一个由两个空间光调制器组成的装置。通过对特殊设计的全息图进行编码，可以同时获得不同衍射顺序下的偏振态，如径向偏振态和方位偏振态。这些ppv可用于激光加工、光镊等领域。(C) 2016年美国光学学会
We demonstrate an approach to generate multiple perfect polarization vortices (PPVs) with selective spatial polarization distribution in various diffraction orders. The key is the design of a hologram with an anisotropic polarization diffraction grating. In the experiment, a setup consisting of two spatial light modulators is built. By encoding the specially designed holograms, PPVs with various states are obtained in different diffraction orders simultaneously, for instance, in radial and azimuthal polarized states. These PPVs may have applications in laser processing, optical tweezers, and so on. (C) 2016 Optical Society of America