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Proceedings Paper

Study of the first Stokes line of Raman cell full of CH4, H2, D2 and their mixture with Ar,He gases
Author(s): Zongming Tao; Yinchao Zhang; Kaifa Cao; Shihua Yu; Xin Fang; Yonghui Lu; Gaixia Zhang; Shisheng Shao; Xiaoqin Liu; Huanling Hu
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Paper 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.

Paper Details

Date Published: 12 May 2005
PDF: 8 pages
Proc. SPIE 5832, Optical Technologies for Atmospheric, Ocean, and Environmental Studies, (12 May 2005); doi: 10.1117/12.619870
Show Author Affiliations
Zongming Tao, Anhui Institute of Optics and Fine Mechanics, CAS (China)
Yinchao Zhang, Anhui Institute of Optics and Fine Mechanics, CAS (China)
Kaifa Cao, Anhui Institute of Optics and Fine Mechanics, CAS (China)
Shihua Yu, Anhui Institute of Optics and Fine Mechanics, CAS (China)
Xin Fang, Anhui Institute of Optics and Fine Mechanics, CAS (China)
Yonghui Lu, Anhui Institute of Optics and Fine Mechanics, CAS (China)
Gaixia Zhang, Anhui Institute of Optics and Fine Mechanics, CAS (China)
Shisheng Shao, Anhui Institute of Optics and Fine Mechanics, CAS (China)
Xiaoqin Liu, Anhui Institute of Optics and Fine Mechanics, CAS (China)
Huanling Hu, Anhui Institute of Optics and Fine Mechanics, CAS (China)


Published in SPIE Proceedings Vol. 5832:
Optical Technologies for Atmospheric, Ocean, and Environmental Studies

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