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碘激光的H2振动受激拉曼阈值研究

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刘栋, 蔡向龙, 何山, 周冬健, 郭敬为, 金玉奇. 2017: 碘激光的H2振动受激拉曼阈值研究, 强激光与粒子束, 29(5): 1-5. doi: 10.11884/HPLPB201729.160523
引用本文: 刘栋, 蔡向龙, 何山, 周冬健, 郭敬为, 金玉奇. 2017: 碘激光的H2振动受激拉曼阈值研究, 强激光与粒子束, 29(5): 1-5. doi: 10.11884/HPLPB201729.160523
shu
Liu Dong, Cai Xianglong, He Shan, Zhou Dongjian, Guo Jingwei, Jin Yuqi. 2017: Vibrational stimulated Raman conversion threshold of H2 pumped by iodine laser, High Power Lase and Particle Beams, 29(5): 1-5. doi: 10.11884/HPLPB201729.160523
Citation: Liu Dong, Cai Xianglong, He Shan, Zhou Dongjian, Guo Jingwei, Jin Yuqi. 2017: Vibrational stimulated Raman conversion threshold of H2 pumped by iodine laser, High Power Lase and Particle Beams, 29(5): 1-5. doi: 10.11884/HPLPB201729.160523
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碘激光的H2振动受激拉曼阈值研究

  • 中国科学院 大连化学物理研究所,化学激光重点实验室,辽宁 大连 116023

Vibrational stimulated Raman conversion threshold of H2 pumped by iodine laser

  • 摘要: 首次实现了脉冲光解碘激光作为基频光的氢气振动受激拉曼变频,对碘激光的波长转换有着重要意义.在碘激光单脉冲能量100～130 mJ(脉宽100 ns)的条件下, 采用双次聚焦技术降低了高压氢气的振动受激拉曼变频的阈值,获得了波长为2900 nm中红外激光,光子转化效率最高达到8.7％.实验发现当拉曼介质氢气气压大于1 MPa后,一级斯托克斯光的拉曼转化效率不再随气压变化,并对这一现象进行了理论分析和归属.
    Abstract: The hydrogen vibrational stimulated Raman scattering (SRS) pumped by a photolytic iodine laser (PIL) has been demonstrated for the first time.Under the condition of PIL pulse energy of 100-130 mJ (100 ns), double pass configuration is applied to reduce the SRS threshold successfully.SRS laser of 2900 nm is obtained and the photon conversion efficiency reaches 8.7％.The conversion efficiency of the first stokes light is found not affected by the pressure of hydrogen, once it is more than 1 MPa.Theoretical analysis is applied to explain this phenomenon.
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  • 刊出日期:  2017-05-30

碘激光的H2振动受激拉曼阈值研究

  • 中国科学院 大连化学物理研究所,化学激光重点实验室,辽宁 大连 116023

摘要: 首次实现了脉冲光解碘激光作为基频光的氢气振动受激拉曼变频,对碘激光的波长转换有着重要意义.在碘激光单脉冲能量100～130 mJ(脉宽100 ns)的条件下, 采用双次聚焦技术降低了高压氢气的振动受激拉曼变频的阈值,获得了波长为2900 nm中红外激光,光子转化效率最高达到8.7％.实验发现当拉曼介质氢气气压大于1 MPa后,一级斯托克斯光的拉曼转化效率不再随气压变化,并对这一现象进行了理论分析和归属.

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