基于探测器标准的高精度光谱辐射标准光源  

High accuracy spectroradiometric standard light source based on detector standard

作　　者：李志刚[1] 

机构地区：[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

出　　处：《中国光学》2015年第6期909-918,共10页Chinese Optics

基　　金：国家自然科学基金资助项目(No.61378063)~~

摘　　要：本文在评述低温绝对辐射计和SIRCUS发展的基础上,讨论了基于探测器标准的光谱可调谐自校准标准光源的工作原理、发展与应用前景。在探测器型光谱辐射标准研究方面,工作在液氦温度的低温绝对辐射计不确定度达0.01%。美国国家标准与技术研究院(NIST)建立的均匀光源光谱辐照度和光谱辐亮度响应度定标装置(SIRCUS)采用一系列激光器,由低温绝对辐射计传递的硅陷阱探测器定标,不确定度已达到0.1%,成功应用于空间遥感仪器高精度辐射定标。分析认为,发展中的基于探测器标准的光谱可调谐自校准标准光源,定标精度高,自行校正老化、衰减,保证了定标精度长期稳定。In this paper,based on reviewing the developments of absolute cryogenic radiometers and SIRCUS, the operating principle,developments,and application prospects of detector standard based,spectrally tuna-ble,self-calibrated standard light sources are discussed.In detector-based spectroradiometric standards,abso-lute cryogenic radiometer operated at liquid helium temperature can achieve an uncertainty of 0.01 %.The fa-cility for spectral irradiance and radiance responsivity calibrations using uniform sources（SIRCUS）established at National Institute of Standards and Technology（NIST）in the United States,which uses a series of lasers and conducts calibrations with silicon trap detectors calibrated against cryogenic radiometer,has achieved an uncertainty level of 0.1 % and has been successfully applied to radiometric calibrations for space remote sens-ing instruments.Analysis indicates that developing detector standard based,spectrally tunable,self-calibrated standard light source with high calibration accuracy,can self-correct aging and attenuation and ensure the long-term stability of calibration accuracy.

关 键 词：光谱辐照度 光谱辐亮度 标准光源 光谱辐射定标 

分 类 号：TH744.1[机械工程—光学工程]