Tripathi Santosh, Toussaint Kimani C
Department of Electrical and Computer Engineering, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA.
Opt Express. 2009 Nov 23;17(24):21396-407. doi: 10.1364/OE.17.021396.
We present rapid Mueller matrix polarimetry that can extract twelve Muller matrix elements from a single intensity image in real time and with high spatial resolution. This is achieved by parallelizing the respective polarization state generation and polarization state detection processes, which in existing polarimeters is performed sequentially. Parallelization of the polarization state generation process is accomplished through the use of vector beams, for which this work represents a new application domain. Polarization state detection is parallelized by uniquely combining a microscope/array detector setup with a specialized algorithm that simultaneously utilizes information from multiple spatial regions of the array detector. Simulated results applying this technique to two anisotropic samples including metamaterial yield material parameters that are consistent with those reported in the literature.
我们展示了快速穆勒矩阵偏振测量法,它能够从单个强度图像中实时且以高空间分辨率提取十二个穆勒矩阵元素。这是通过将各自的偏振态生成和偏振态检测过程并行化来实现的,而在现有的偏振计中这些过程是顺序执行的。偏振态生成过程的并行化是通过使用矢量光束来完成的,这项工作代表了矢量光束的一个新应用领域。偏振态检测通过将显微镜/阵列探测器设置与一种专门算法独特地结合起来实现并行化,该算法同时利用来自阵列探测器多个空间区域的信息。将该技术应用于包括超材料在内的两个各向异性样品的模拟结果产生了与文献中报道的一致的材料参数。