H2、D2及H2/D2混合气体受激拉曼特性研究

受激拉曼散射是扩展激光波长的重要方法，但是气体中非线性光学过程对受激拉曼光的影响非常复杂，实验研究受激拉曼光与气体气压及拉曼池耦合透镜焦距的关系是实际应用受激拉曼光的重要手段。设计了受激拉曼实验装置及其测量系统，采用Nd:YAG 激光器的四倍频激光266 nm 作为抽运源，活性气体（H2、D2及H2/D2混合气体）分别被密封在长为100 cm 的拉曼管中，输出的拉曼激光由棱镜分光后用能量计采集保存用以研究拉曼散射特性。给出了H2、D2及H2/D2混合气体的各级Stokes和反Stokes受激拉曼激光能量与气体气压及透镜焦距的关系。获得了217.84~447.15 nm 之间的12 条激光谱线，有效地扩展了拉曼激光的应用范围。研究结果对气体受激拉曼光的实际应用具有十分重要的价值。

Abstract

The stimulated Raman scattering (SRS) is an important method to extend the laser wavelength range. Nonlinear optical processes in gas have complex impacts on SRS laser, so it is important to make an experimental study on the relationship between the characteristic of SRS laser and gas pressure and focal length of lens for applications of SRS laser. The SRS experimental device and measurement system are introduced. Its pump source is a pulsed Nd:YAG laser at 266 nm, and active gases (H2 and D2, H2/D2 mixtures) are sealed in the 100 cm long Raman cell. The outgoing SRS laser split by a prism is measured by an energy meter for the study of SRS characteristics of the active gases. The relationship between the energy of outgoing Stokes and anti- Stokes SRS laser in the H2, D2 and H2/D2 mixtures and gas pressure and focal length of lens is presented. The laser of 12 wavelength bands from 217.84 nm to 447.15 nm are obtained, which effectively expand the scope of the application of Raman laser. The research results have very important practical application value for the use of gas SRS laser.

参考文献

[1] 蓝信钜. 激光技术[M]. 北京: 科学出版社, 2000. 220-264.

Lan Xinju. Laser Technology [M]. Beijing: Science Press, 2000. 220-264.

[2] 王治华, 宫立基, 刘杰, 等. 钛宝石激光激发高效1.053 μm 拉曼激光的产生[J]. 中国激光, 2014, 41(7): 0702002.

Wang Zhihua, Gong Liji, Liu Jie, et al.. High efficient production of 1.053 μm pico-second Raman laser excited by Ti:Sapphire laser [J]. Chinese J Lasers, 2014, 41(7): 0702002.

[3] 张文会, 丁双红, 丁泽, 等. 1064 nm 纳秒脉冲激发的PbWO4固态拉曼放大器[J]. 中国激光, 2014, 41(5): 0502011.

Zhang Wenhui, Ding Shuanghong, Ding Ze, et al.. A PbWO4 solid-state Raman amplifier excited by 1064 nm nanosecond pulser [J]. Chinese J Lasers, 2014, 41(5): 0502011.

[4] 王泽锋, 于飞, William Wadsworth, 等. 单程高增益1.9 μm 光纤气体拉曼激光器[J]. 光学学报, 2014, 34(8): 0814004.

Wang Zefeng, Yu Fei, William Wadsworth, et al.. Single-pass high-gain 1.9 μm optical fiber gas Raman laser [J]. Acta Optica Sinica, 2014, 34(8): 0814004.

[5] Valentin Simeonov, Valentin Mitev, Hubert van den Bergh, et al.. Raman frequency shifting in a CH4:H2:Ar mixture pumped by the fourth harmonic of a Nd:YAG laser [J]. Appl Opt, 1998, 37(30): 7112-7115.

[6] 冷静, 沙国河, 花晓清, 等. 三倍频Nd:YAG 激光抽运氧气中的受激拉曼和布里渊散射[J]. 光学学报, 2005, 25(8): 1105-1110.

Leng Jing, Sha Guohe, Hua Xiaoqing, et al.. Stimulated ramanand Brillouin scattering in oxygen pumped by a Nd:YAG laser at 355 nm [J]. Acta Optica Sinica, 2005, 25(8): 1105-1110.

[7] Laurent de Schoulepnikoff, Valentin Mitev, Valentin Simeonov, et al.. Experimental investigation of high-power single-pass Raman shifters in the ultraviolet with Nd:YAG and KrF lasers [J]. Appl Opt, 1997, 36(21): 5026-5043.

[8] S Tzortzakis, G Tsaknakis, A Papayannis, et al.. Investigation of the spatial profile of stimulated Raman scattering beams in D2 and H2 gases using a pulsed Nd: YAG laser at 266 nm [J]. Appl Phys B, 2004, 79(1): 71-75.

[9] 范广强, 刘建国, 刘文清, 等. 差分吸收激光雷达几何因子实验确定方法[J]. 量子电子学报, 2013, 30(1): 93-97.

Fan Guangqiang, Liu Jianguo, Liu Wenqing, et al.. Experimental determination of lidar geometric factor in differential absorption lidar [J]. Chinese J Quantum Electronics, 2013, 30(1): 93-97.

[10] 陶宗明, 张寅超, 吕勇辉, 等. Nd:YAG 四倍频激光抽运甲烷后的受激拉曼效应及其物理机制分析[J]. 物理学报, 2004, 53(8): 183-188.

Tao Zongming, Zhang Yinchao, Lu Yonghui, et al.. Effect of stimulated Raman scattering pumped by fourth harmonic Nd:YAG laser in methane and analysis of its physical processes [J]. Acta Physica Sinica, 2004, 53(8): 183-188.

[11] 吴永华, 岳古明, 胡欢陵, 等. Nd:YAG 四倍频激光抽运氘后的拉曼效应及其在激光雷达中的应用[J]. 中国激光, 2000, 27(9): 823-827.

Wu Yonghua, Yue Guming, Hu Huanling, et al.. D2 stimulated Raman scattering pumped by fourth harmonic Nd:YAG laser and its application in laser radar [J]. Chinese J Lasers, 2000, 27(9): 823-827.

[12] 杨远洪, 杨巍, 蒋婷, 等. 单模光纤中受激拉曼散射的阈值特性研究[J]. 光学学报, 2014, 34(1): 0129001.

Yang Yuanhong, Yang Wei, Jiang Ting, et al.. Investigation on characteristics of stimulated Raman threshold in single mode fiber[J]. Acta Optica Sinica, 2014, 34(1): 0129001.

[13] L Schoulepnikoff, V Mitev. High-gain single-pass stimulated Raman scattering and four-wave mixing in a focused beamgeometry: a numerical study [J]. Pure Appl Opt, 1997, 6(2): 277-302.

[14] K Sentrayan, L Major, A Michael, et al.. Observation of intense Stokes and anti-Stokes lines in CH4 pumped by 355 nm of a Nd:YAG laser [J]. Appl Phys B, 1992, 55(4): 311-318.

曹开法, 黄见, 胡顺星. H₂、D₂及H₂/D₂混合气体受激拉曼特性研究[J]. 光学学报, 2015, 35(3): 0319001. Cao Kaifa, Huang Jian, Hu Shunxing. Investigation of Stimulated Raman Scattering Characteristics in D₂, H₂ and D₂/H₂ Mixtures[J]. Acta Optica Sinica, 2015, 35(3): 0319001.

H₂、D₂及H₂/D₂混合气体受激拉曼特性研究

关于本站 Cookie 的使用提示

全站搜索