基于双通道剪切干涉的高光谱偏振成像方法

发布时间：2018-01-30 04:21

本文关键词： 成像系统干涉光谱成像偏振成像双通道横向剪切微偏振阵列　出处：《光学学报》2017年10期 　论文类型：期刊论文

【摘要】：光谱偏振成像技术可同步测量目标的空间信息、光谱成分和偏振特性分量,在天文物理研究、大气成分的探测和生物医学等领域具有巨大的发展潜力。偏振信息的同步获取通常牺牲光谱成像的空间分辨率,为避免光谱成像空间分辨率的降低,提出基于双通道剪切干涉的高光谱偏振成像方法。利用双矩形干涉器实现双通道剪切干涉,两个通道分别进行高分辨率干涉光谱成像以及基于微偏振阵列的光谱偏振成像。分析了双通道剪切干涉以及基于微偏振阵列调制的傅里叶变换光谱偏振成像原理,论述了光谱信息反演方法以及偏振信息提取方法。搭建了实验装置,对实际场景目标进行光谱偏振成像实验,获得了目标的高空间分辨率光谱图像和偏振分量信息。研究表明,该高光谱偏振成像技术可同步进行偏振成像测量和高分辨率光谱成像测量。
[Abstract]:The spectral polarization imaging technique can synchronously measure the spatial information, spectral composition and polarization characteristic components of the target in astrophysics research. The detection of atmospheric components and biomedicine have great potential. The synchronous acquisition of polarization information usually sacrifices the spatial resolution of spectral imaging to avoid the reduction of spatial resolution of spectral imaging. A hyperspectral polarization imaging method based on two-channel shearing interferometry is proposed. The dual-channel shearing interferometer is used to realize the dual-channel shearing interferometry. The principle of Fourier transform spectral polarization imaging based on two-channel shearing interference and micro-polarization array modulation is analyzed respectively for high-resolution interferometric spectral imaging and spectral polarization imaging based on micro-polarization array. . The spectral information retrieval method and polarization information extraction method are discussed. An experimental device is set up to carry out spectral polarization imaging experiments on the actual scene targets. The high spatial resolution spectral image and polarization component information of the target are obtained. It is shown that the hyperspectral polarization imaging technique can synchronize the polarization imaging measurement and the high resolution spectral imaging measurement.
【作者单位】：南京理工大学电子工程与光电技术学院;南京理工大学先进固体激光工业和信息化部重点实验室;中国科学院国家天文台南京天文光学技术研究所;
【基金】：国家自然科学基金(61475072) 国家重大科学仪器设备开发专项(2013YQ150829) 中央高校基本科研业务费专项资金(30916014112-010)
【分类号】：O436.3;TP391.41
【正文快照】： 1011002-1extraction mode of polarization information are discussed.High spatial resolution spectral images and polarizationimages of a scene in the visible region are acquired by the experimental apparatus,which proves that the proposedimaging spectropol

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