Influence of Collimation System on Static Fourier Transform Spectrometer

被引：2
|
作者：
Jiang Cheng-zhi [2 ,3 ]
Liang Jing-qiu [1 ]
Liang Zhong-zhu [1 ]
Sun Qiang [2 ]
Wang Wei-biao [1 ]
机构：
[1] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, State Key Lab Appl Opt, Changchun 130033, Peoples R China
[2] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Optoelect Technol Ctr, Changchun 130033, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
SPECTROSCOPY AND SPECTRAL ANALYSIS | 2014年 / 34卷 / 01期
关键词：
Spectroscopy; Design of collimation system; Fresnel diffraction; Aberration; Extended source; MIRRORS;
D O I：
10.3964/j.issn.1000-0593(2014)01-0274-05
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
Collimation system provides collimated light for the static Fourier-transform spectroscopy (SETS). Its quality is crucial to the signal to noise ratio (SNR) of SFTS. In the present paper, the physical model of SETS was established based on the Fresnel diffraction theory by means of numerical software. The influence of collimation system on the SFTS was discussed in detail focusing on the aberrations of collimation lens and the quality of extended source. The results of simulation show that the influences of different kinds of aberrations on SNR take on obvious regularity, and in particular, the influences of off-axis aberrations on SNR are closely related to the location of off-axis point source. Finally the extended source's maximum radius allowed was obtained by simulation, which equals to 0.65 mm. The discussion results will be used for the design of collimation system.
引用
收藏
页码：274 / 278
页数：5
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