中国物理B ›› 2004, Vol. 13 ›› Issue (9): 1423-1427.doi: 10.1088/1009-1963/13/9/010

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The role of compound lens in optimizing the irradiation uniformity in longitudinal pumping laser

李汉明1, 李英骏1, 张杰2   

  1. (1)Department of Physics, China University of Mining and Technology, Beijing 100083, China; Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; (2)Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • 收稿日期:2004-03-14 修回日期:2004-05-18 出版日期:2004-06-21 发布日期:2005-06-21
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos 10390160, 10374116, 10176034) and National High Technology Development Program of China (Grant No 2004AA847080).

The role of compound lens in optimizing the irradiation uniformity in longitudinal pumping laser

Li Han-Ming (李汉明)ab, Li Ying-Jun (李英骏)ab, Zhang Jie (张杰)b   

  1. a Department of Physics, China University of Mining and Technology, Beijing 100083, China; b Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2004-03-14 Revised:2004-05-18 Online:2004-06-21 Published:2005-06-21
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos 10390160, 10374116, 10176034) and National High Technology Development Program of China (Grant No 2004AA847080).

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摘要： In order to optimize the axial irradiation uniformity of a laser in plasma, this paper investigates the role played by the compound lens using a ray-tracing method. Obtained results show that the adoption of the compound lens is capable of increasing the axial line-focus length. Meanwhile, after the energy attenuation in the plasma has been considered, moderating the optical parameter of the compound lens to obtain the corresponding energy output to compensate for the attenuation optimizes the irradiation uniformity along the focal line.

关键词: longitudinal pump, compound lens, ray-tracing, axial line-focus

Abstract: In order to optimize the axial irradiation uniformity of a laser in plasma, this paper investigates the role played by the compound lens using a ray-tracing method. Obtained results show that the adoption of the compound lens is capable of increasing the axial line-focus length. Meanwhile, after the energy attenuation in the plasma has been considered, moderating the optical parameter of the compound lens to obtain the corresponding energy output to compensate for the attenuation optimizes the irradiation uniformity along the focal line.

Key words: longitudinal pump, compound lens, ray-tracing, axial line-focus

中图分类号:  (X- and γ-ray lasers)

  • 42.55.Vc
42.79.Bh (Lenses, prisms and mirrors) 42.15.Dp (Wave fronts and ray tracing) 52.38.-r (Laser-plasma interactions)