Plane grating spectrometer based on double Schwarzschild structures

ZHANG Jing; XUE Qing-sheng; CAO Dian-sheng

doi:10.3788/OPE.20142209.2321

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Plane grating spectrometer based on double Schwarzschild structures

更新时间：2020-08-13

- Plane grating spectrometer based on double Schwarzschild structures
- Optics and Precision Engineering Vol. 22, Issue 9, Pages: 2321-2328(2014)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所,吉林长春,中国,130033
  2. 中国科学院大学北京,中国,100049
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20142209.2321
  CLC： TP73;TH744.1
- Received：10 July 2013，
  
  Revised：05 September 2013，
  
  Published：25 September 2014
- 稿件说明：
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张晶, 薛庆生, 曹佃生. 基于双Schwarzschild结构的平面光栅光谱仪[J]. 光学精密工程, 2014,22(9): 2321-2328

ZHANG Jing, XUE Qing-sheng, CAO Dian-sheng. Plane grating spectrometer based on double Schwarzschild structures[J]. Editorial Office of Optics and Precision Engineering, 2014,22(9): 2321-2328
张晶, 薛庆生, 曹佃生. 基于双Schwarzschild结构的平面光栅光谱仪[J]. 光学精密工程, 2014,22(9): 2321-2328 DOI： 10.3788/OPE.20142209.2321.

ZHANG Jing, XUE Qing-sheng, CAO Dian-sheng. Plane grating spectrometer based on double Schwarzschild structures[J]. Editorial Office of Optics and Precision Engineering, 2014,22(9): 2321-2328 DOI： 10.3788/OPE.20142209.2321.

摘要

为了满足高分辨率大相对孔径宽波段高光谱成像仪的要求，提出并设计了一种基于双Schwarzschild结构的平面光栅光谱仪。基于几何像差理论，推导出了像散校正条件，利用Matlab软件编制了初始结构参数快速计算程序。作为实例，设计了一个相对孔径为1/2.5，波段为350~1 000 nm的平面光栅光谱仪光学系统。利用自己编制的Matlab程序计算了初始结构参数，然后利用光学设计软件ZEMAX-EE对该光谱仪的光学系统进行了光线追迹和优化设计，并对设计结果进行分析。结果表明，在整个工作波段（350~1 000 nm）内，点列图半径均方根值小于8.2

m，实现了大相对孔径宽波段像散同时校正，在宽波段内同时获得了良好的成像质量，满足了设计指标要求。所提出的基于双Schwarzschild结构的平面光栅光谱仪在高光谱遥感领域很有应用前景。

Abstract

To satisfy the requirements of a high-resolution hyperspectral imager with a large relative aperture and a wide spectral region

a new type plane grating spectrometer was proposed and designed based on double Schwarzschild structures. The astigmatism-correcting condition was derived based on the theory of geometrical aberration. The initial parameter computing was programmed by using Matlab software. As an example

an optical system for the plane grating spectrometer with a relative aperture of 1/2.5 operating in 350-1 000 nm was designed. The initial parameters were computed using proposed Matlab program

then the ray tracing and optimization for the spectrometer system were performed with ZEMAX-EE software. The analyzed results demonstrate that the spot radius(Root Mean Square

RMS) is less than 8.2

m in the whole working waveband (from 350 nm to 1 000 nm)

the astigmatism-corrected is realized

and good imaging quality is obtained in a wide spectral region with a large relative aperture. Obtained data satisfy the requirements of design specifications

and prove the feasibility of the new type plane grating spectrometer base on double Schwarzschild structures. It has extensive application prospects in spaceborne and airborne hyperspectral remote sensing fields.

关键词

Keywords

references

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