光栅色散型成像光谱仪的实验室光谱定标方法研究

马亮; 危峻; 黄小仙; 崔毅; 张晓

doi:doi:10.3788/lop50.023001

激光与光电子学进展, 2013, 50 (2): 023001, 网络出版: 2013-02-04

光栅色散型成像光谱仪的实验室光谱定标方法研究下载： 937次

Laboratory Spectral Calibration Method of Grating Dispersive Imaging Spectrometer

论文大纲

马亮 ^*危峻黄小仙崔毅张晓

作者单位

中国科学院上海技术物理研究所, 上海 200083

光谱学光谱定标成像光谱仪单色仪谱线弯曲 spectroscopy spectral calibration imaging spectrometer monochromator spectral-line bending

摘要

为了实现光栅色散型成像光谱仪的实验室光谱定标，采用1243×576光敏元的背照减薄型CCD面阵探测器，设计了一套光谱定标装置，实现了光谱定位精度±1 nm的光谱定标方法。该方法多方考量了对光谱定标产生影响的因素，包括光源光谱分布、光栅分光效率、单色仪光谱带宽、谱线弯曲和Fringes现象。针对这些因素，提出了用于光谱波长定位校正的数学模型。光谱定标的结果表明：实验室光谱定标各像元平均光谱带宽为2.20 nm，谱线弯曲最大值为0.925 nm，弯曲方向符合理论方向。用汞灯等线谱光源进行复测，光谱定位误差最大值为0.6 nm，符合预定的定标精度要求。

Abstract

In order to obtain spectral response curve of grating dispersive imaging spectrometer for laboratory calibration by back illuminated thinned 1243×576 detector array, a set of spectral calibration device which implements a spectral calibration method with the accuracy of ±1 nm is designed. Factors influencing spectral response including the light source spectral distribution, the grating efficiency, spectral bandwidth of the monochromator, the spectral-line bending and fringes phenomenon are evaluated, and for these confounding factors we propose a mathematical model for calibration. The spectral calibration results show that: the pixel average spectral bandwidth is 2.20 nm, the maximum value of spectral-line bending is 0.925 nm and the bending direction is in line with the theoretical direction. Repeating the test with the mercury lamp, the spectral uncerainty is less than 0.6 nm.

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马亮, 危峻, 黄小仙, 崔毅, 张晓. 光栅色散型成像光谱仪的实验室光谱定标方法研究[J]. 激光与光电子学进展, 2013, 50(2): 023001. Ma Liang, Wei Jun, Huang Xiaoxian, Cui Yi, Zhang Xiao. Laboratory Spectral Calibration Method of Grating Dispersive Imaging Spectrometer[J]. Laser & Optoelectronics Progress, 2013, 50(2): 023001.

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