第20卷第1期
2012年1月文章编号
1004-924X(2012)01-0052-06
光学精密工程
Optics and Precision Engineering
凸面光栅成像光谱仪的研制与应用刘玉娟1,2，，崔继承1,2，巴音贺希格1，陈少杰1.2，齐向东"，唐玉国1（1.中国科学院长春光学精密机械与物理研究所，吉林长春130033；
2.中国科学院研究生院，北京100049）
Vol.20No.1
Jan.2012
摘要：考虑传统光栅成像光谱仪受光学畸变的限制难以同时实现大光学孔径和小型化要求，利用全息法设计并制作了凸面光栅，并以该凸面光作为核心元件研制了便携式成像光谱仪。该光谱仪以推扫方式进行目标扫描，获取成像光谱数据立方。仪器的光谱分辨率为2.4nm，光谱谱线弯曲为0.1%，色略变为0.6%，体积为209mm×199mm×110mm 介绍了仪器的工作原理和结构设计，并进行了实验室检测和室外花弃实际光谱测量。测试结果表明：凸面光栅成像光谱仪的光谱分辨率为2.1nm，光谱谱线弯曲为0.09%，色畸变为0.6%，均满足设计要求，实际花卉光谱测试亦取得了较为理想的结果。
关键调：成像光谱仅；西面光栅；全息术；数据立方
中图分类号：TH744.1
文献标识码：A
doi:10.3788/OPE,20122001.0052
Designandapplicationofimagingspectrometer
withconvexgrating
LIU Yu-juanl-2·, CUI Ji-cheng'-, Bayanheshig', CHEN Shao-jiel-2, QI Xiang-dong" , TANG Yu-guo
(1,ChangchunInstituteof Optics，FineMechanics and Physics,
ChineseAcademy of Sciences,Changchun130033,China;
2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China)
%Correspondingauthor，E-mailuliuyujuan163.com
Abstract: As traditional grating-based spectrometers can not offer fast apertures and small volume sys tems synchronously, this paper designs a convex grating by using holography and develops an imaging spectrometer with the convex grating as a core element.It acquires the image of targetby pushbroom scanning, then obtains the data cubes ofthe imaging spectra.The image spectrometer has a spaceres olution of 2. 4 nm, a spectral line bend of o.1%, the chromatic distortion of o. 6%, and a volume of 209 mmX199 mmX110 mm. The principle of imaging spectrometer with convex grating is analyzed and its constructs are described. Then, a spectral experiment in the laboratory is carried out and the spectra of extraventricular flowers are tested. The result demonstrates that the real spectral resolution is 2. 1 nm, line bend is 0. 09% and the chromatic distortion is 0. 6%. These data satisfy the design re quirement, and obtained spectra are ideal results.
收稿日期：2010-10-19；修订日期：2011-01-11,
基金项目：国家创新方法工作专项资助项目（No.2008IM040700）；吉林省科技支撑计划资助项目（No.20106011）