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.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
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
关键词
受激拉曼散射
激光诱导等离子体
水
重水
Stimulated Raman scattering
Laser induced plasma
Water
Heavy water
