Full control of polarization state with a pair of electro-optic modulators for polarization-resolved optical microscopy
Full control of polarization state with a pair of electro-optic modulators for polarization-resolved optical microscopy
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DOI：
10.1364/ao.55.001082
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发表时间：
2016-02-10
期刊：
影响因子：
1.9
通讯作者：
Ichimura, Taro
中科院分区：
文献类型：
--
作者：
Kaneshiro, Junichi;Watanabe, Tomonobu M.;Ichimura, Taro
利用两个独立的电光调制器对光的偏振状态进行了完全和任意控制。利用Jones矢量和矩阵对其可控性机理进行了理论描述，并在Stokes参数空间中以几何形式表示了极化状态随控制参数的变化。我们的理论框架考虑了偏振控制器和测量点之间的光学元件可能造成的偏振态畸变，并提出了一种预补偿偏振畸变的机制。实验证明了该理论的有效性和偏振态的可控性，并利用二向色镜作为偏振畸变器进行了测试光学装置。讨论了极化扫描过程中不可避免的强度变化及其前后补偿策略。讨论了该技术在生物成像中的适用性。(C) 2016年美国光学学会
Full and arbitrary control of polarization states of light using two independent electro-optic modulators is presented. The mechanism of the controllability is theoretically described using the Jones vector and matrix, and the polarization state change with control parameters is geometrically illustrated in the Stokes parameter space. Our theoretical framework involves possible distortions of the polarization state due to optical elements between the polarization controller and measurement point and presents a mechanism for pre-compensating the polarization distortion. The theory's validity and controllability of the polarization state are experimentally demonstrated with a test optical setup using a dichroic mirror as a polarization distorter. The inevitable intensity variation during polarization sweeps and a strategy for pre- and post-compensation of the variations are discussed. The technique's applicability to bioimaging is also discussed. (C) 2016 Optical Society of America