Study of the first Stokes line of Raman cell full of CH4, H2, D2 and their mixture with Ar,He gases

Zongming Tao; Yinchao Zhang; Kaifa Cao; Shihua Yu; Xin Fang; Yonghui Lu; Gaixia Zhang; Shisheng Shao; Xiaoqin Liu; Huanling Hu

doi:10.1117/12.619870

12 May 2005 Study of the first Stokes line of Raman cell full of CH₄, H₂, D₂ and their mixture with Ar,He gases

Zongming Tao, Yinchao Zhang, Kaifa Cao, Shihua Yu, Xin Fang, Yonghui Lu, Gaixia Zhang, Shisheng Shao, Xiaoqin Liu, Huanling Hu

Author Affiliations +

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.

Citation Download Citation

Zongming Tao, Yinchao Zhang, Kaifa Cao, Shihua Yu, Xin Fang, Yonghui Lu, Gaixia Zhang, Shisheng Shao, Xiaoqin Liu, and 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); https://doi.org/10.1117/12.619870

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