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| 皮秒激光抽运高压H_2的受激拉曼散射研究 | |
| 引用本文： | 岳古明,徐贲,王爱华,王佩琳,郭强,陈鹤平. 皮秒激光抽运高压H_2的受激拉曼散射研究[J]. 物理学报, 2004, 53(5) |
| 作者姓名： | 岳古明 徐贲 王爱华 王佩琳 郭强 陈鹤平 |
| 作者单位： | 1. 中国科学院安徽光学精密机械研究所大气光学重点实验室,合肥,230031 2. 安徽大学,合肥,230039 |
| 摘 要： | 利用Nd :YAG锁模序列脉冲激光 (10 6 4nm)抽运充有高压H2 的拉曼池 ,输出光束经棱镜分光后投射在屏上 ,在可见光及近紫外光区用彩色胶卷摄得 15个受激拉曼散射光斑 ;经 1m光栅摄谱仪摄谱 ,在 36 5— 6 0 5nm波长范围内得到 6 5条受激拉曼谱线 .通过实验结果与理论计算值的比较 ,证明除了H2 的振动拉曼频移量 4 15 4 6cm- 1 外 ,还有多个振动及转动拉曼频移量共同参与作用 ,从而产生了从紫外到红外众多波长的受激拉曼散射光 . |
| 关 键 词： | 皮秒激光 高压氢气 拉曼频移 受激拉曼散射(SRS) |
The study on stimulated Raman scattering in high-pressure H_2 pumped by picosecond pulse laser |
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| Yue Gu-Ming ) Xu Ben ) Wang Ai-Hua ) Wang Pei-Lin ) Guo Qiang ) Chen He-Ping ) ). The study on stimulated Raman scattering in high-pressure H_2 pumped by picosecond pulse laser[J]. Acta Physica Sinica, 2004, 53(5) | |
| Authors: | Yue Gu-Ming ) Xu Ben ) Wang Ai-Hua ) Wang Pei-Lin ) Guo Qiang ) Chen He-Ping ) ) |
| Affiliation: | Yue Gu-Ming 1) Xu Ben 1) Wang Ai-Hua 1) Wang Pei-Lin 1) Guo Qiang 1) Chen He-Ping 2) 1) |
| Abstract: | This paper reports the fact that 15 Raman scattering faculas in the range of visible light are observed, which are generated by pumping a Raman cell filled with high-pressure H 2 with a model-locking Nd:YAG laser at 1064nm.The output laser is dispersed by a prism, so we can see the faculas behind the prism. Sixty-five scattered lines can be found in the range of 365nm-605nm if the output beam is dispersed by a grating spectrograph. By numerical analysis, it is shown that other vibrational Raman shifts and rotational Raman shifts are stimulated, besides the vibrational Raman shift at 4154.6cm -1. They all cause the multi-wavelength stimulated Raman scattering light, which show up from ultraviolet to infrared realm. |
| Keywords: | picosecond pulse laser high-pressure H2 Raman shift stimulated Raman scattering (SRS) |
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