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空间紫外遥感光谱仪器偏振特性研究

Polarization Performance in Space Ultraviolet Remote Sensing Spectral Instruments

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摘要

为提高仪器整机性能及遥感数据反演质量, 分析了仪器光学系统膜系对偏振的影响, 利用氙灯、准直系统、布儒斯特起偏器和紫外光谱仪构建了一套偏振响应测试系统, 测量了仪器在200~320 nm紫外波段范围内的P光与S光的偏振响应。测试结果表明, 仪器在P偏振光与S偏振光照射下呈现出不同的偏振响应, 偏振态由S变化到P, 紫外光谱仪响应峰值波长位置由290 nm变化到275 nm,双片漫透射板相比单片漫透射板, 紫外光谱仪能量减少40%~75%; 增加单片与双片漫透射板后, 紫外光谱仪的偏振响应值均在265 nm波长处达到最大, 其中双片漫透射板使紫外光谱仪偏振响应更接近单位值1, 缩小了不同偏振态光的偏振响应差异, 更适用于同步辐射光源定标需求。

Abstract

To improve the performance of instrument and the inversion of remote sensing data, we analyze the influence of instrument optical system films on polarization. The xenon lamp, collimation system, Brewster polarizer and ultraviolet spectrometer are used to build a set of polarization response testing system. P polarized light and S polarized light polarization response characteristics of the instrument are measured in the range from 200 nm to 320 nm ultraviolet wavelength band. The test result indicates that the instrument shows different polarization responses under P polarized and S polarized light irradiation. When the polarization is changing from S to P, the peak wavelength of ultraviolet spectrometer response changes from 290 nm to 275 nm. Meanwhile, the energy of ultraviolet spectrometer under double pieces diffuser reduces by 40%~75% in comparison with single piece diffuser; under single piece diffuser and double pieces diffuser, spectrometer polarization response values both get maximum at 265 nm wavelength, while under double pieces diffuser, the polarization response of spectrometer is closer to unit value, and the variation of response to different polarization states is reduced, which is more suitable for the calibration requirement of the synchrotron radiation source.

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中图分类号:TP73

DOI:10.3788/AOS201838.0112006

所属栏目:仪器,测量与计量

基金项目:国家自然科学基金(11573025)

收稿日期:2017-07-03

修改稿日期:2017-07-26

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作者单位    点击查看

李寒霜:中国科学院长春光学精密机械与物理研究所, 吉林 长春 130033中国科学院大学, 北京 100049
李博:中国科学院长春光学精密机械与物理研究所, 吉林 长春 130033
王淑荣:中国科学院长春光学精密机械与物理研究所, 吉林 长春 130033

联系人作者:李博(libo0008429@163.com)

备注:李寒霜(1987-), 女, 博士研究生, 主要从事紫外-真空紫外遥感仪器光学系统方面的研究。E-mail: lihanshuang06@163.com

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引用该论文

Li Hanshuang,Li Bo,Wang Shurong. Polarization Performance in Space Ultraviolet Remote Sensing Spectral Instruments[J]. Acta Optica Sinica, 2018, 38(1): 0112006

李寒霜,李博,王淑荣. 空间紫外遥感光谱仪器偏振特性研究[J]. 光学学报, 2018, 38(1): 0112006

被引情况

【1】沈云,汪涛,汪云,邓晓华,曹俊诚,谭智勇,邹林儿,代国红. 太赫兹波段金属阵列结构的透射及反射宽谱偏振特性. 光学学报, 2018, 38(5): 513001--1

【2】陈 旭,丁 蕾,王颖萍,郑海洋,方 黎. 气溶胶单粒子的偏振散射特性研究. 大气与环境光学学报, 2019, 14(5): 321-329

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