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宽光谱高分辨率二维光谱信号探测系统设计
引用本文:吴瑞,张尹馨,黄战华,杨怀栋,金国藩.宽光谱高分辨率二维光谱信号探测系统设计[J].光谱学与光谱分析,2016(4):1249-1254.
作者姓名:吴瑞  张尹馨  黄战华  杨怀栋  金国藩
作者单位:1. 光电信息技术科学教育部重点实验室,天津大学,天津 300072;2. 清华大学精密测试技术与仪器国家重点实验室,北京,100084
基金项目:国家重大科学仪器设备开发专项(2014YQ510403),中国科学院战略性先导科技专项(B类,XDB09000000)
摘    要:针对宽光谱范围高分辨率的中阶梯光栅-棱镜交叉色散光路对二维光谱的探测需求,分析了探测器与光路系统的匹配关系,提出了面阵光谱探测系统的设计方法,设计了具有高灵敏度、低噪声等特点的二维光谱探测系统。该系统包括主控单元、探测器驱动单元、信号处理单元、数据存储单元以及数据传输单元等主要模块。以滨松S10141型CCD为核心设计的探测系统灵敏度高、动态范围大、信噪比高。结合中阶梯光栅-棱镜交叉色散光路进行光谱探测实验,结果表明,该探测系统能在200~600nm宽光谱范围内获得高分辨率二维光谱图像,在Hg灯253.652nm处单色像斑覆盖5个像素,分辨率达到6.3pm。

关 键 词:宽光谱  高分辨率  二维光谱  探测系统

Detection System for High-Resolution and Broadband-2D Spectrogram
Abstract:In order to meet the demand of detecting the high‐resolution and broadband‐2D spectrogram for echelle‐prism cross‐dispersion ,the design method is given ,and the 2D spectrogram detection system with high‐resolution and low noise is designed by analyzing the relation between the detector and the optical system and proving designing method of detecting the area spectro‐gram .The system includes a main control unit ,a detector driving unit ,a signal processing unit ,a data storage unit and a data transmission unit ,etc .With Hamamatsu’s S10141‐1109S CCD as the detector ,the detection system features high sensitivity , broadband spectrogram ,high signal to noise ratio .Combined with the echelle‐prism cross‐dispersion optical path to perform ex‐periments ,the results show that ,the detection system can acquire high‐resolution 2D spectrogram image in the range of 200 to 600 nm ,the monochromatic image at 253.652 nm of Hg lamp covers 5 pixels ,and the resolvable wavelength reaches 6.3 pm .
Keywords:Broadband spectrogram  High resolution  2D spectrogram  Detection system
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