中国物理B ›› 2007, Vol. 16 ›› Issue (1): 154-158.doi: 10.1088/1009-1963/16/1/027

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

A method to measure the Brillouin frequency shift of the medium through Brillouin amplification ratio

哈斯乌力吉, 吕志伟, 李强, 何伟明   

  1. Institute of Opto-electronics, Harbin Institute of Technology,Harbin 150001, China
  • 收稿日期:2006-06-02 修回日期:2006-06-25 出版日期:2007-02-01 发布日期:2007-02-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos~10476009 and 60478020).

A method to measure the Brillouin frequency shift of the medium through Brillouin amplification ratio

Hasi Wu-Li-Ji(哈斯乌力吉), Lü Zhi-Wei(吕志伟)† , Li Qiang(李强), and He Wei-Ming(何伟明)   

  1. Institute of Opto-electronics, Harbin Institute of Technology,Harbin 150001, China
  • Received:2006-06-02 Revised:2006-06-25 Online:2007-02-01 Published:2007-02-01
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos~10476009 and 60478020).

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摘要： In order to measure the Brillouin frequency shift (BFS) of the medium, this paper proposes a method using mixtures in a two-cell stimulated Brillouin scattering system, which uses a medium to be measured as amplifier medium and a mixture medium as generator medium. The seed light from the generator gains effective amplification in the amplifier and the amplification ratio changes with the mixing fraction. Only when the BFS of the mixture medium is equal to that of the medium in the amplifier does the seed light obtain the maximum amplification ratio. The method has the advantage of independence of the wavelength of the incident light.

Abstract: In order to measure the Brillouin frequency shift (BFS) of the medium, this paper proposes a method using mixtures in a two-cell stimulated Brillouin scattering system, which uses a medium to be measured as amplifier medium and a mixture medium as generator medium. The seed light from the generator gains effective amplification in the amplifier and the amplification ratio changes with the mixing fraction. Only when the BFS of the mixture medium is equal to that of the medium in the amplifier does the seed light obtain the maximum amplification ratio. The method has the advantage of independence of the wavelength of the incident light.

Key words: stimulated Brillouin scattering, Brillouin frequency shift, liquid mixture

中图分类号:  (Stimulated Brillouin and Rayleigh scattering)

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