Vibrational stimulated Raman conversion threshold of H<sub>2</sub> pumped by iodine laser

Liu Dong; Cai Xianglong; He Shan; Zhou Dongjian; Guo Jingwei; Jin Yuqi

doi:10.11884/HPLPB201729.160523

Volume 29 Issue 05

Apr. 2017

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Liu Dong, Cai Xianglong, He Shan, et al. Vibrational stimulated Raman conversion threshold of H2 pumped by iodine laser[J]. High Power Laser and Particle Beams, 2017, 29: 051001. doi: 10.11884/HPLPB201729.160523

Citation:

Liu Dong, Cai Xianglong, He Shan, et al. Vibrational stimulated Raman conversion threshold of H₂ pumped by iodine laser[J]. High Power Laser and Particle Beams, 2017, 29: 051001. doi: 10.11884/HPLPB201729.160523

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Vibrational stimulated Raman conversion threshold of H₂ pumped by iodine laser

doi: 10.11884/HPLPB201729.160523

1.
Key Laboratory of Chemical Laser,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China

Received Date: 2016-11-17
Rev Recd Date: 2017-01-03
Publish Date: 2017-05-15

Abstract

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.
- vibrational stimulated Raman scattering,
- iodine laser,
- photon conversion efficiency,
- Raman gain