| 多道激光Raman光谱检测系统 |
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| 引用本文： | 杨性愉,陈京珍,王玉昌,黄永明.多道激光Raman光谱检测系统[J].光谱学与光谱分析,1999,19(1):120-122. |
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| 作者姓名： | 杨性愉 陈京珍 王玉昌 黄永明 |
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| 作者单位： | 1. 内蒙古大学物理系,010021,呼和浩特
2. 内蒙古大学实验测试中心,010021,呼和浩特 |
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| 摘 要： | 设计了一种多道激光Ｒａｍａｎ光谱检测系统，由Ａｒ＾＋激光器、外光路、多色仪和光学多道分析仪（ＯＭＡⅡ）组成，通过对ＣＣｌ４、Ｃ６Ｈ６、Ｃ６Ｈ１２的Ｒａｍａｎ光谱的检测表明，与单道激光Ｒａｍａｎ光谱检测系统相比，多道系统大大缩短记录Ｒａｍａｎ光谱的时间，但每道的积分时间可延长至１０－５０ｓ，将多道探测器的工作温度降低到５℃，可获得信噪比高、灵敏度高、质量好的Ｒａｍａｎ光谱。采用微分软件处理Ｒａｍａｎ
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| 关 键 词： | Raman光谱 光学多道分析 信噪比 |
A Multichannel Laser Raman Spectral Detecting System |
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| Xingyu YANG,Jingzhen CHEN,Yuchang WANG,Yongming HUANG.A Multichannel Laser Raman Spectral Detecting System[J].Spectroscopy and Spectral Analysis,1999,19(1):120-122. |
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| Authors: | Xingyu YANG Jingzhen CHEN Yuchang WANG Yongming HUANG |
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| Institution: | Department of Physics, NeiMonggol University, 010021 Hohhot. |
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| Abstract: | A multichannel laser Raman spectral detecting system is described. It consists of Ar+ laser, outer optics, polychrometer and optical multichannel analyzer (OMA II). Raman spectra of CCl4, C6H6 and C6-H12 were detected. Tests showed that the time required to acquire a Raman spectrum with this/multichannel system is greatly reduced, but the integral time per channel can be expanded to 10-50 s in contrast with a conventional single channel Raman spectrometer. When the working temperature of the multichannel detector is dropped to 5 degrees C, the Raman spectra with high signal to noise ratio, high sensitivity and good quality can be obtained. Processing Raman spectral curves with differential software, the Raman lines which are nearly submerged in Rayleigh line can be picked up. |
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| Keywords: | Raman spectroscopy Optical multichannel analyzer Signal to noise ratio |
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