12 May 2005 Study of the first Stokes line of Raman cell full of CH4, H2, D2 and their mixture with Ar,He gases
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Proceedings Volume 5832, Optical Technologies for Atmospheric, Ocean, and Environmental Studies; (2005) https://doi.org/10.1117/12.619870
Event: Optical Technologies for Atmospheric, Ocean, and Environmental Studies, 2004, Beijing, China
Abstract
Raman frequency shifter is a useful method extending laser wavelength the first Stokes of CH4, H2, and D2 pumped by the fourth harmonic of Nd:YAG laser can be used in DIAL measurement of the trace gases. The stability and energy of SRS are related to focal length of lens active gas pressure input energy buffer gas elements and pressure. We detect the stability and energy of the first Stokes line under pure active and mixture with Ar or He. From our experiment the stability of pure CH4, H2 are almost same under different pressure however the stability of pure D2 changes with pressure. The energy conversion efficiency on Si is different among pure gas (CH4, H2, D2). Furthermore the optimal output energy of the first Stokes line of CH4, H2, D2 are got independently at moderate active gas pressure mixing with moderate buffer pressure.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Zongming Tao, Zongming Tao, Yinchao Zhang, Yinchao Zhang, Kaifa Cao, Kaifa Cao, Shihua Yu, Shihua Yu, Xin Fang, Xin Fang, Yonghui Lu, Yonghui Lu, Gaixia Zhang, Gaixia Zhang, Shisheng Shao, Shisheng Shao, Xiaoqin Liu, Xiaoqin Liu, Huanling Hu, Huanling Hu, } "Study of the first Stokes line of Raman cell full of CH4, H2, D2 and their mixture with Ar,He gases", Proc. SPIE 5832, Optical Technologies for Atmospheric, Ocean, and Environmental Studies, (12 May 2005); doi: 10.1117/12.619870; https://doi.org/10.1117/12.619870
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