基于双通道剪切干涉的高光谱偏振成像方法

刘成淼1,2 李建欣1,2 朱日宏1,2 崔向群1,3

(1.南京理工大学电子工程与光电技术学院, 江苏南京 210094)
(2.南京理工大学先进固体激光工业和信息化部重点实验室, 江苏南京 210094)
(3.中国科学院国家天文台南京天文光学技术研究所, 江苏南京 210042)

【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。

【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;

【DOI】

【基金资助】 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)

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This Article

ISSN:0253-2239

CN: 31-1252/O4

Vol 37, No. 10, Pages 142-152

October 2017

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Article Outline

摘要

  • 1 引言
  • 2 双通道高光谱偏振成像原理
  • 3 实验与分析
  • 4结论
  • 参考文献