水的受激Raman散射

J4 ›› 2013, Vol. 51 ›› Issue (02): 309-311.

水的受激Raman散射

刘立钢¹, 付成伟², 陆国会², 李占龙², 刘铁成^2

1. 北华大学教育科学学院, 吉林吉林 132013|2. 吉林大学物理学院, 长春 130012

收稿日期:2012-06-21 出版日期:2013-03-26 发布日期:2013-03-27
通讯作者: 李占龙 E-mail:zlli@jlu.edu.cn

Raman Scattering of Stimulated Water

LIU Li gang¹, FU Cheng wei², LU Guo hui², LI Zhan long², LIU Tie cheng²

1. |College of Educational Science Research, Beihua University, Jilin 132013, Jilin Province, China;2. |College of Physics, Jilin University, Changchun 130012, China

Received:2012-06-21 Online:2013-03-26 Published:2013-03-27
Contact: LI Zhan long E-mail:zlli@jlu.edu.cn

摘要/Abstract

摘要：

利用532 nm脉冲激光研究水的受激Raman散射, 并利用激光诱导产生的等离子体解释了前向、后向和侧向水受激Raman散射的差异. 结果表明: 水与甲醇和乙醇的受激Raman阈值基本相同, 大于苯、甲苯和二硫化碳的受激Raman阈值; 当能量为140 mJ时, 出现前向Stokes和反Stokes 3 426 cm^-1谱线, 后向和侧向出现3 400,3 268 cm^-1的受激Stokes谱线.

关键词: 受激Raman散射, 激光诱导等离子体, Stokes谱线

Abstract:

Raman scattering of stimulated water was studied under the stimulation of Nd∶YAG laser at wavelength 532 nm. The Raman threshold of water is similar to that of methanol or alcohol, but is larger than that of benzene, toluene or carbon bisulfide. At an excitation laser energy of 140 mJ,  3 426 cm^-1 stimulated Stokes and anti\|Stokes lines were found in the forward Raman scattering, the stimulated Stokes lines 3 400,3 268 cm^-1 can be found in the backward and sideward Raman scattering. Owing to low Kerr constant, the threshold of the stimulated Raman of water is pretty high. The difference between the forward and backward, sideward stimulated Raman scattering of water is explained by laser induced plasma.

Key words: stimulated Raman scattering, laser induced plasma, Stokes line

中图分类号:

O437.3

刘立钢, 付成伟, 陆国会, 李占龙, 刘铁成. 水的受激Raman散射[J]. J4, 2013, 51(02): 309-311.

LIU Li-Gang, FU Cheng-Wei, LIU Guo-Hui, LI Tie-Long, LIU Tie-Cheng. Raman Scattering of Stimulated Water[J]. J4, 2013, 51(02): 309-311.