DCM荧光增强C_3H_6O受激拉曼散射(SRS)的增益特性研究  

Investigation of amplification characteristics of SRS in acetone enhanced by DCM dye fluorescence

作　　者：李振声[1] 程娟[2] 王治华[1] 罗时荣[1] 杨经国[1] 

机构地区：[1]四川大学物理系,成都610064 [2]中国工程物理研究院激光聚变中心,绵阳621900

出　　处：《物理学报》2005年第9期4164-4168,共5页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:60078020;60478044)资助的课题.~~

摘　　要：报道荧光染料DCM对丙酮SRS的高效放大,研究了DCM中Stokes波的增益特性.改变DCM乙醇溶液浓度,变化进入DCM的Stokes光强度以及抽运激光功率,测量并分析了Stokes波增益与上述条件的关系.研究结果发现,当DCM浓度为2×10-4molL时,Stokes波获得最大功率增益达到5.7;抽运激光功率增加或进入DCM的Stokes信号增强时Stokes波输出增强,但过强的Stokes信号将导致增益饱和.The efficient amplification of stimulated Raman scattering in Acetone enhanced by dicyanomethylene （DCM） dye fluorescence and the amplification characteristics are reported in this paper. Under the various concentrations of DCM, various intensities of input Stokes signal and various pump laser intensities, the input and output Stokes wave intensities are measured in the experiment. At the concentration of 2 × 10^-4 mol/L for DCM solution in ethanol, the biggest enhancement factor of Stokes wave reaches 5.7. The higher the intensity of pump laser or input Stokes signal, the higher the intensity of output Stokes wave, and if the input Stokes is too high, the enhancement coefficient may decrease, the so-called enhancement saturation.

关 键 词：受激拉曼散射 荧光增强Stokes波 丙酮 DCM DCM 受激拉曼散射 特性研究 荧光增强 STOKES波 激光功率 溶液浓度 信号增强 荧光染料 

分 类 号：O437.3[机械工程—光学工程]