强度调制偏振光谱仪的系统设计

宋志平; 洪津; 乔延利

doi:10.3788/OPE.20101811.2325

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强度调制偏振光谱仪的系统设计

现代应用光学 | 更新时间：2020-08-12

- 强度调制偏振光谱仪的系统设计
- System design of intensity modulation spectropolarimeter
- 光学精密工程 2010年18卷第11期页码：2325-2331
- 作者机构：
  
  1. 中国科学院通用光学定标与表征技术重点实验室,安徽合肥 230031
  2. 安徽大学物理与材料科学学院, 安徽合肥 230039
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目(No.60778023)()
- DOI：10.3788/OPE.20101811.2325
  中图分类号： TP73;TH744.1
- 收稿日期：2010-02-02，
  
  修回日期：2010-04-08，
  
  网络出版日期：2010-11-25，
  
  纸质出版日期：2010-11-25
- 稿件说明：
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宋志平, 洪津, 乔延利. 强度调制偏振光谱仪的系统设计[J]. 光学精密工程, 2010,18(11): 2325-2331

SONG Zhi-ping, HONG Jin, QIAO Yan-li. System design of intensity modulation spectropolarimeter[J]. Editorial Office of Optics and Precision Engineering, 2010,18(11): 2325-2331
宋志平, 洪津, 乔延利. 强度调制偏振光谱仪的系统设计[J]. 光学精密工程, 2010,18(11): 2325-2331 DOI： 10.3788/OPE.20101811.2325.

SONG Zhi-ping, HONG Jin, QIAO Yan-li. System design of intensity modulation spectropolarimeter[J]. Editorial Office of Optics and Precision Engineering, 2010,18(11): 2325-2331 DOI： 10.3788/OPE.20101811.2325.

摘要

理论分析和实验研究了强度调制偏振光谱仪系统参数的设计。介绍了强度调制偏振光谱仪的结构原理

分析了调制器设计、光谱仪选型与系统指标间的匹配关系。给出了一个完整的设计实例

以搭台方式建立了强度调制偏振光谱仪原理实验装置

并对平行光管直接输出的光和经起偏器起偏后输出的光进行了偏振光谱测量和分析。结果表明:在有效测量波段内(525 ~700 nm)

以卤钨灯为光源的平行光管直接输出光的偏振度值<10％;经过线偏振器起偏后输出光的偏振度值接近100％

与理论分析的结果一致

验证了基于强度调制技术设计偏振光谱仪方法的可行性。

Abstract

The parameter design of a Intensity Modulation Spectropolarimeter(IMS) was studied and analyzed in this paper. The basic concept and structure of the IMS were described and the dependence on modulator design

spectrometer selection and system performance was analyzed. By taking an integrated system design for an example

the IMS experimental system was established in the laboratory

the basic concepts and characteristics of the technique were verified and the polarization spectra from a typical light source were also tested. Experimental results show that the polarized degree of the light from a tungsten-halogen lamp collimator is less than 10%

but it is about 100% when the light is polarized by a polarizer in the spectral range of 525-700 nm. These results are coincident with the theoretical results wel1

which verifies the feasibility of method that spectropolarimeter can be realized based on the intensity modulation.

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references

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