Polarization imaging by use of digital holography
Polarization imaging by use of digital holography
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DOI：
10.1364/ao.41.000027
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发表时间：
2002-01-01
期刊：
影响因子：
1.9
通讯作者：
Depeursinge, C
中科院分区：
文献类型：
--
作者：
Colomb, T;Dahlgren, P;Depeursinge, C
我们提出了一种新的数字全息成像方法，它能够在一次图像采集的基础上同时确定样品表面的强度、位相和偏振态的分布。两个具有正交偏振态的参考波与物波干涉，以产生全息图，并记录在CCD相机上。数值重建了两个波阵面，每个波阵面对应一个垂直偏振态，强度和相位。结合这两个波前的强度和相位分布，可以确定目标波前琼斯矢量的所有分量。结果表明，该方法可以对样品表面的偏振态分布进行成像和测量，结果表明可以实现对样品表面偏振态的精确定量测量。给出了该方法在应力聚甲基丙烯酸甲酯样品双折射成像中的应用。(C)2002年美国光学学会。
We present what we believe to be a new digital holographic imaging method that is able to determine simultaneously the distributions of intensity, phase, and polarization state at the surface of a specimen on the basis of a single image acquisition. Two reference waves with orthogonal polarization states interfere with the object wave to create a hologram that is recorded on a CCD camera. Two wave fronts, one for each perpendicular polarization state, are numerically reconstructed in intensity and phase. Combining the intensity and the phase distributions of these two wave fronts permits the determination of all the components of the Jones vector of the object-wave front. We show that this method can be used to image and measure the distribution of the polarization state at the surface of a specimen, and the obtained results indicate that precise quantitative measurements of the polarization state can be achieved. An application of the method to image the birefringence of a stressed polymethyl methacrylate sample is presented. (C) 2002 Optical Society of America.