宽视场干涉光谱成像仪技术研究  

Study of Fourier Transform Imaging Spectrometer with Wide Field of View

作　　者：张智南[1,2] 李立波[1,2] 胡炳樑[1] 冯玉涛[1] 

机构地区：[1]中国科学院西安光学精密机械研究所光谱成像技术重点实验室,陕西西安710119 [2]中国科学院大学,北京100049

出　　处：《光学学报》2016年第1期286-293,共8页Acta Optica Sinica

基　　金：国家自然科学基金(41005019)

摘　　要：针对海洋光谱成像技术对于宽视场（FOV）、大幅宽、高通量的需求，提出了一种基于像平面干涉技术的新型宽视场干涉光谱成像仪，研究了像平面干涉技术的原理，提出了相应的干涉方案并推导了系统的光程差公式，制定了详细的参数指标并根据相应参数设计优化了光学系统。光学系统前置镜和中继镜分别采用双高斯和Dyson结构，视场为35．5°，幅宽为320km，系统F数为4，焦距为100mm，在400～900nm的谱段范围内，平均信噪比（SNR）大于100，在奈奎斯特空间频率为32lp／mm处，调制传递函数（MTF）大于0．5，各项指标满足要求。In order to meet the demand of wide field of view （FOV）, wide swath width, and high throughput for the ocean spectrum, a new Fourier transform imaging spectrometer with wide FOV based on the image plane interference technologies presented. And the principle and expressions of the image plane interference are studied and educed.The optical system is designed and optimized based on the calculated detailed parameters. Dyson and double Gauss structures are used in the relay lens and fore optics respectively. Under the circumstance of 400-900 nm spectral range, 35.5° FOV, 320 km swath width, F/4, and 100 mm focal length, the average signal noise ratio （SNR） is greater than 100 and the modulation transfer function （MTF） of the current design is greater than 0.5 at 32 lp/mm. All the parameters are well satisfied by the present design.

关 键 词：光学设计 干涉光谱成像技术 海洋光谱 像平面干涉技术 宽视场 

分 类 号：TH744[机械工程—光学工程]