| CH4分子ν1模拉曼诱导克尔效应谱与受激拉曼光声光谱峰形的比较 |
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| 引用本文： | 喻远琴,周晓国,林柯,戴静华,刘世林,马兴孝.CH4分子ν1模拉曼诱导克尔效应谱与受激拉曼光声光谱峰形的比较[J].物理学报,2006,55(6):2740-2745. |
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| 作者姓名： | 喻远琴 周晓国 林柯 戴静华 刘世林 马兴孝 |
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| 作者单位： | 合肥微尺度物质科学国家实验室(筹),中国科学技术大学化学物理系,合肥 230026 |
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| 摘 要： | 以气相甲烷分子ν1模Q支的拉曼光谱为例，采用拉曼诱导克尔效应谱(RIKES)进行峰形测量，并将其与同时测量的受激拉曼光声光谱(PARS)的峰形进行了比较.结果表明，在pump光和Stokes光均为线偏振的情况下，两者存在着差异；在拉曼共振峰的低频端，RIKES谱强度略高；而高频端则恰好相反.从信号产生机制出发，对此进行了合理解释.
关键词：
拉曼诱导克尔效应谱
受激拉曼光声光谱
峰形
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| 关 键 词： | 拉曼诱导克尔效应谱 受激拉曼光声光谱 峰形 |
| 文章编号： | 1000-3290/2006/55（06）/2740-06 |
| 收稿时间： | 10 22 2005 12:00AM |
| 修稿时间： | 2005-10-222005-11-15 |
Profile comparison between the Raman-induced Kerr effect spectrum and photoacoustic Raman spectrum of methane |
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| Yu Yuan-Qin,Zhou Xiao-Guo,Lin Ke,Dai Jing-Hua,Liu Shi-Lin,Ma Xing-Xiao.Profile comparison between the Raman-induced Kerr effect spectrum and photoacoustic Raman spectrum of methane[J].Acta Physica Sinica,2006,55(6):2740-2745. |
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| Authors: | Yu Yuan-Qin Zhou Xiao-Guo Lin Ke Dai Jing-Hua Liu Shi-Lin Ma Xing-Xiao |
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| Institution: | 1. Heifei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China |
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| Abstract: | Two kinds of spectrum, the Raman-Induced Kerr Effect Spectrum(RIKES)and the Photoacoustic Raman Spectrum(PARS),were measured simultaneously for the ν1 vibrational band of methane. The difference between the profiles of the two spectra obtained with linearly polarized pump and Stokes laser beams lies in that, the intensity of RIKES spectrum is stronger at the small Raman shift side, and is weaker at the large Raman shift side compared to the PARS spectrum. It was confirmed that this difference is caused by the interference between the resonant and non-resonant parts of the third order non-linear susceptibility. |
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| Keywords: | RIKES PARS profile |
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