光栅光谱仪的整体建模与分析

杨怀栋; 陈科新; 黄星月; 何庆声; 金国藩

doi:doi:10.3964/j.issn.1000-0593(2009)01-0281-04

光谱学与光谱分析, 2009, 29 (1): 281, 网络出版: 2009-12-09

光栅光谱仪的整体建模与分析

Global Modeling and Analyzing of Grating Spectrometers

论文大纲

杨怀栋 ^*陈科新黄星月何庆声金国藩

作者单位

清华大学精密测试技术与仪器国家重点实验室,北京 100084

光谱仪模型传递函数 Spectrometer Model Transfer function

摘要

理论模型是研究光谱技术,开发光谱仪器的重要工具。文章提出了一种对现代光栅光谱仪进行整体建模与分析的方法。与现有方法仅局限于光学成像等局部环节不同,该方法从光谱信息传递和变换的角度将光栅光谱仪分割为光学成像、探测、重建和显示4个功能模块,分析各个模块对光谱信息的影响,建立光栅光谱仪的整体模型并导出它的传递函数。进一步,又利用它们分析了各模块对仪器整体性能的影响规律,并揭示出要获得高质量的光谱图必须增加基带响应,抑制假响应,而重建模块将是重要途径。

Abstract

A method for globally modeling and analyzing grating spectrometers is put forward in the present paper.Different from existing methods which are confined to parts of a spectrometer,the method takes a grating spectrometer as four functional parts,namely imaging optics,detector,reconstruction and display.Effects of each part on spectrum are considered and a global model of the spectrometer is developed,accompanied with its transfer function.With the help of the model and the transfer function,laws of each part affecting the holistic performance are summed up.It is suggested that high quality spectrogram needs enhancing baseband response and reducing spurious response,and reconstruction is an effective way.

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杨怀栋, 陈科新, 黄星月, 何庆声, 金国藩. 光栅光谱仪的整体建模与分析[J]. 光谱学与光谱分析, 2009, 29(1): 281. YANG Huai-dong, CHEN Ke-xin, HUANG Xing-yue, HE Qing-sheng, JIN Guo-fan. Global Modeling and Analyzing of Grating Spectrometers[J]. Spectroscopy and Spectral Analysis, 2009, 29(1): 281.

光栅光谱仪的整体建模与分析

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