日光诱导叶绿素荧光高光谱成像仪研究(特邀)  

Study on hyperspectral imager for the solar induced chlorophyll fluorescence observation(Invited)

作　　者：张伟 薛辉[1] 于磊 Zhang Wei;Xue Hui;Yu Lei(Anhui Institute of Optics and Fine Mechanics,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China;University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中国科学院合肥物质科学研究院安徽光学精密机械研究所,安徽合肥230031 [2]中国科学技术大学,安徽合肥230026

出　　处：《红外与激光工程》2021年第10期1-9,I0004,共10页Infrared and Laser Engineering

基　　金：国家自然科学基金(41504143);中国科学院科研装备研制项目(YJKYYQ20190044);中国科学院青年创新促进会(2016203)。

摘　　要：研究了一种可用于植被日光诱导叶绿素荧光遥感的高光谱成像仪样机,用以满足对植被微弱荧光辐射探测的高信噪比、高光谱分辨率的科学探测需求。根据荧光与太阳夫琅禾费线的作用探测机理,结合探测科学需求分析完成了具备高性能的光学系统设计。系统工作波段为670~780 nm的可见-近红外谱段,可覆盖植物受太阳光照射而产生的荧光辐射特征波长;系统数值孔径为0.25,这种大通光能力可确保系统具备足够的信噪比;系统光谱分辨率优于0.3 nm,并同时具备良好的成像质量。样机的初步结果完全满足设计要求,该研究将为我国未来日光诱导叶绿素荧光高光谱成像探测提供一种有力的手段。An prototype of imaging spectrometer for the remote sensing of solar induced chlorphyll fluorescence of vegetation was researched to satisfy the scientific requirements of high SNR and high spectral resolution for the weak fluorescence observation.Based on the principle of relationship between the fluorescence and solar Fraunhofer lines,the optimization of the optical system with high performance was completed.It covered the visible-near infrared working waveband of 670-780 nm,which also covered the special wavelengths of the solar induced fluorescence.The numerical aperture was 0.25 which ensured the enough SNR of the system.The imaging spectrometer also owned spectral resolution better than 0.3 nm and excellent imaging quality.The performance tests of the prototype were studied.The research will supply an excellent engineering application in the further solar induced chlorophyll fluorescence high spectral imaging observation.

关 键 词：成像光谱仪 日光诱导叶绿素荧光 可见-近红外 高光谱分辨率 

分 类 号：O433.1[机械工程—光学工程] TH744[理学—光学]