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满足消像散条件的Czerny-Turner光谱仪光路的防干涉设计

陈芳 徐彭梅

光学精密工程2011,Vol.19Issue(6):1265-1271,7.
光学精密工程2011,Vol.19Issue(6):1265-1271,7.DOI:10.3788/OPE.20111906.1265

满足消像散条件的Czerny-Turner光谱仪光路的防干涉设计

Optical structure optimization of broadband astigmatism-free Czerny-Turner spectrometer

陈芳 1徐彭梅1

作者信息

  • 1. 北京空间机电研究所,北京100086
  • 折叠

摘要

Abstract

The interference between the optical paths in a broadband astignatism-free Gzerny-Turner spectrometer which uses spherical optics and a plane grating was introduced theoretically. To eliminate the interference, the zeroth-order and first-order astigmatism-free conditions of the Czerny-Turn-er spectrometer was researched and several situations of optical path interference satisfied the astigmatism-free conditions were analyzed. Based on the astigmatism-free conditions and avoidance conditions of optical structure interference, the selection principles of the incidence angles θc and θF were deduced, and the optimization approach was summarized. Then, the optical system of Czerny-Turner spectrometer which will be loaded on a spacecraft was designed according to the method whose selection principle was verified by using ray-tracing method. The results show that the obtained imaging quality has a good spectral resolution, which validates that the Czerny-Turner spectrometer can satisfy the requirements both for eliminating astigmatism and for avoiding optical structure interference .Inconclusion,the method can help the spectrometer more compact and more efficient.

关键词

光栅光谱仪;Czerny-Turner光学系统;消像散;干涉

Key words

grating spectrometer/Czerny-Turner optical system/astigmatism-free/interference

分类

航空航天

引用本文复制引用

陈芳,徐彭梅..满足消像散条件的Czerny-Turner光谱仪光路的防干涉设计[J].光学精密工程,2011,19(6):1265-1271,7.

基金项目

国家重点基金资助项目 ()

光学精密工程

OA北大核心CSCDCSTPCD

1004-924X

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