光学学报, 2015, 35 (5): 0526001, 网络出版: 2015-04-03
全光控制产生任意矢量光束 下载: 520次
Generation of Arbitrary Vector Beams by Full Control of Light
摘要
提出通过调制光场的所有空间分布参数产生任意矢量光束的方法,即用两个反射型纯相位液晶空间光调制器可以对光的相位、振幅和偏振(包括偏振旋转和椭偏度)等参量进行全光调制或全光控制。在理论上给出了全光控制的琼斯矩阵方程,再计算要加载在空间调制器上的灰度图,从而产生目标矢量光场。实验上,通过调制两个或三个光场的空间分布参数产生了不同的矢量光场图样,从而验证了全光控制产生矢量光场方法的可行性。
Abstract
We propose a method named as full control of light to generate arbitrary vector beams by modulating all the parameters of the spatial distributions of an optical field. Two reflective phase-only liquid crystal spatial light modulators can be used to modulate all the parameters of light including the phase, amplitude and polarization (polarized rotation and ellipticity). Theoretically, we provide the Jones matrix of full control of light. Then the grayscale that is loaded on the spatial light modulator can be calculated according to the designed vectorial optical field. Experimentally, different vector beams containing amplitude and/or polarization modulations are successfully generated and tested using polarization measurement to verify the feasibility of this method of full control of light.
刘国威, 杨艳芳, 何英, 郑晓, 罗祝裕. 全光控制产生任意矢量光束[J]. 光学学报, 2015, 35(5): 0526001. Liu Guowei, Yang Yanfang, He Ying, Zheng Xiao, Luo Zhuyu. Generation of Arbitrary Vector Beams by Full Control of Light[J]. Acta Optica Sinica, 2015, 35(5): 0526001.