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双环光束在CS_2中传输的研究 被引量：1

Experimental and theoretical study of the propagation of the double-circle laser beam in CS_2
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摘要 双环光束在CS2中传输时,当入射光功率密度超过140 kW/cm2时,光束产生丝状自聚焦现象,传输过程中光斑出现分裂现象;建立双环光束模型,通过数值求解非线性Schr dinger方程,得出光束在一定功率之上会产生丝状自聚焦和光斑分裂现象,并详细讨论了环形斑激光束在非线性克尔介质中的传输特性. The filamentary self-focusing and spot-splitting effects are observed during the transmission of the double-ring laser beam in CS2. By solving nonlinear Schrǒdinger equation numerically, the filamentary self-focusing and spot-splitting are observed in the transmission process when the input laser beam＇s power density is over 140 kW/cm^2. The characteristics of the double-ring laser beam＇s propagation in CS2 are also discovered.
作者 沈常宇
机构地区 中国计量学院信息工程学院
出处 《中国计量学院学报》 2006年第2期142-145,共4页 Journal of China Jiliang University
关键词 双环光束 丝状自聚焦 光斑分裂 double-ring laser beam filamentary self-focusing spot-splitting
分类号 O437 [机械工程—光学工程]
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参考文献11

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共引文献20

同被引文献8

  • 1沈常宇.环形斑激光束在非线性克尔介质中的光束分裂效应[J].中国计量学院学报,2003,14(4):271-274. 被引量：3
  • 2叶青.单模光纤中孤子脉冲的传输特性及其相互作用的数值研究[D]陕西师范大学,陕西师范大学2003.
  • 3YING W,DENG L.Ultraslowoptical solitons in a cold four-state medium. Physical Review Letters . 2004
  • 4HASEGAWA A.Optical solitons in fibers for communicationsystems. Optics and Photonics News . 2002
  • 5CLAUDIO C,MARCO P.Observation of optical spatialsolitons in a highly nonlocal medium. Physical Review Letters . 2004
  • 6Desaix M,Helczynski L,Anderson D, et al.Propagation properties of chirped soliton pulses in optical nonlinear Kerr media. Physical Review E Statistical Nonlinear and Soft Matter Physics . 2002
  • 7Ouzounov D G,Ahmad F R,Muller D,et al.Generation of megawatt optical solitons in hollow-core photonic band-gap fibers. Science . 2003
  • 8金永兴,徐江峰,王剑锋.脊形波导有限差分法分析[J].中国计量学院学报,2003,14(2):114-116. 被引量：5

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中国计量学院学报
2006年 第2期

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