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基于XeF(C-A)激光激励的自发拉曼散射技术研究

Research on Spontaneous Raman Scattering Excited by XeF(C-A) Laser

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摘要

针对自发拉曼散射技术应用于实际燃烧场参数测量时面临的主要技术难题,采用XeF(C-A)激光作为激励光源,开展了自发拉曼散射技术实验研究。通过分析拉曼散射过程对光源参数的要求,优化了XeF(C-A)激光器部分参数,建立了自发拉曼散射诊断系统,实现了气体介质主要组分浓度在线测量,对比了XeF(C-A)激光与主流激光作为拉曼散射光源的优缺点。结果表明:与现有主流光源相比,具有脉冲能量大、微秒级脉宽,位于可见光波段等特点的放电抽运XeF(C-A)激光非常适合用作自发拉曼散射激励光源。

Abstract

The main drawbacks of the spontaneous Raman scattering is its poor efficiency due to small Raman scattering cross sections and the interference with radiations from the laser when it is used to measurement actual combustion parameters. To overcome these drawbacks, XeF(C-A) laser is used as excited source in spontaneous Raman scattering research. Some parameters of the XeF(C-A) laser is optimized for adapt to the need of spontaneous Raman scattering. The experimental setup is built, which is used to measurement the mole fraction of components in the atmosphere. The advantages and disadvantages of spontaneous Raman scattering excited by different lasers are compared. The result shows that the XeF(C-A) laser with high energy, long pulse width and long wavelength is very fit to be used as spontaneous Raman scattering light source.

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中图分类号:TN241

DOI:10.3788/aos201434.1114001

所属栏目:激光器与激光光学

基金项目:激光与物质相互作用国家重点实验室基金(SKLLIM1208)

收稿日期:2014-07-01

修改稿日期:2014-07-15

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作者单位    点击查看

张振荣:西北核技术研究所激光与物质相互作用国家重点实验室, 陕西 西安 710024
朱峰:西北核技术研究所激光与物质相互作用国家重点实验室, 陕西 西安 710024
李国华:西北核技术研究所激光与物质相互作用国家重点实验室, 陕西 西安 710024
瞿谱波:西北核技术研究所激光与物质相互作用国家重点实验室, 陕西 西安 710024
黄超:西北核技术研究所激光与物质相互作用国家重点实验室, 陕西 西安 710024
沈炎龙:西北核技术研究所激光与物质相互作用国家重点实验室, 陕西 西安 710024
胡志云:西北核技术研究所激光与物质相互作用国家重点实验室, 陕西 西安 710024

联系人作者:张振荣(zhangzhenrong@nint.ac.cn)

备注:张振荣(1974—),男,硕士,副研究员,主要从事燃烧流场激光诊断技术方面的研究。

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引用该论文

Zhang Zhenrong,Zhu Feng,Li Guohua,Qu Pubo,Huang Chao,Shen Yanlong,Hu Zhiyun. Research on Spontaneous Raman Scattering Excited by XeF(C-A) Laser[J]. Acta Optica Sinica, 2014, 34(11): 1114001

张振荣,朱峰,李国华,瞿谱波,黄超,沈炎龙,胡志云. 基于XeF(C-A)激光激励的自发拉曼散射技术研究[J]. 光学学报, 2014, 34(11): 1114001

被引情况

【1】王晟,邵珺,李国华,赵新艳,胡志云,刘晶儒. 基于检测分子瑞利散射光多普勒频移的流场多点速度测量. 中国激光, 2015, 42(10): 1015002--1

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