摘要
利用Nd∶YAG激光器的三倍频输出 (35 5nm)在H2 中的受激拉曼散射 (SRS)获得波长在 2 0 4～ 86 7nm范围内的激光输出。当抽运能量为 70mJ时观察到四阶Stokes光和五阶Anti Stokes光 ,其中第一阶Stokes光 (416nm)输出能量为 2 8 7mJ,第二阶Stokes光 (5 0 3nm)输出能量为 16mJ,一阶Anti Stokes光 (30 9nm)输出能量为 3mJ。研究了H2 压力和各阶Stokes光能量的关系 ,同时观察到环行光斑和脉宽压缩现象。
The Stimulated Raman Scattering (SRS) in H2 umped by the third harmonic of Nd:YAG laser (355 nm) was investigated. The wavelength of pump laser has been shifted into 204-867 nm wavelength region. When the pump laser was operated at laser energy of 70 mJ, four orders of Stokes and five orders of anti-Stokes have been observed in this experiment. The corresponding output energy of the first order Stokes (416 nm), the second order Stokes (503 nm) and the first order anti-Stokes (309 nm) was 28.7 mJ. 16 mJ and 3 mJ, respectively. The relationships between the pressure of H2 and energy of each Stokes were investigated. Moreover, the circle beam spot and phenomena of pulse-width compressed have been observed.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2003年第9期819-822,共4页
Chinese Journal of Lasers
基金
国家自然科学基金 (编号 :199840 0 2 )
国家高技术ICF资助项目
关键词
非线性光学
受激拉曼散射
固体激光
四波混频
Four wave mixing
Hydrogen
Nonlinear optics
Pressure effects
Pumping (laser)
Raman scattering
