激光诱导等离子体冲击波增强水和重水晶格振动受激拉曼散射  

Enhancing Stimulated Raman Scattering of Water and Heavy Water Lattice Vibration by Laser Induced Plasma

作　　者：单肖宁[1] 门志伟[1] 周密[1] 孙成林[1] 里佐威[1] 王一丁[2] 李占龙[1,2] 

机构地区：[1]吉林大学物理学院,吉林长春130012 [2]吉林大学,集成光电子学国家重点联合实验室,吉林长春130012

出　　处：《光谱学与光谱分析》2013年第8期2031-2034,共4页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(11104106);吉林省科技项目(20101508,201101037,201115033);中国博士后基金项目(20100481062,2012T50284,2012M520669)资助

摘　　要：利用532nm的脉冲激光进行了水和重水受激拉曼散射研究,不仅实现了O—H和O—D的伸缩振动受激拉曼散射,同时还实现了晶格振动的受激拉曼散射。水在激发光能量为130mJ时出现低频受激Stocks和Anti-Stoks 313cm-1谱线;重水在激发光能量为160mJ时出现低频受激Stocks和Anti-Stoks 280cm-1谱线。利用激光诱导等离子体解释了这种拉曼散射增强模式。Stimulated Raman scattering was studied in water and heavy water using pulse laser at the wavelength of 532nm,not only obtaining the stimulated Raman of O — H and O — D stretching vibration,but also obtaining the stimulated Raman lattice vibration.When the laser energy was 130mJ,the low frequency Stokes and anti-Stokes 313cm -1 line of water could be observed ; When the laser energy was 160mJ,the low frequnecy Stokes and anti-Stokes 280cm -1 line of heavy water could be observed.The results were explained by physics mechanism of laser induced plasma.

关 键 词：受激拉曼散射 激光诱导等离子体 水 重水 

分 类 号：O657.3[理学—分析化学]