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Chin. Phys. B, 2009, Vol. 18(10): 4298-4302    DOI: 10.1088/1674-1056/18/10/034
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The (1+1)-dimensional spatial solitons in media with weak nonlinear nonlocality

Ding Na(丁娜) and Guo Qi(郭旗)
Laboratory of Photonic Information Technology, South China Normal University, Guangzhou 510631, China
Abstract  We study the propagation of (1+1)-dimensional spatial soliton in a nonlocal Kerr-type medium with weak nonlocality. First, we show that an equation for describing the soliton propagation in weak nonlocality is a nonlinear Schrödinger equation with perturbation terms. Then, an approximate analytical solution of the equation is found by the perturbation method. We also find some interesting properties of the intensity profiles of the soliton.
Keywords:  nonlocal nonlinear Schrödinger equation      weak nonlocality      spatial optical soliton  
Received:  02 March 2009      Revised:  09 April 2009      Accepted manuscript online: 
PACS:  42.65.Tg (Optical solitons; nonlinear guided waves)  
  02.60.Lj (Ordinary and partial differential equations; boundary value problems)  
  42.65.Hw (Phase conjugation; photorefractive and Kerr effects)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos 10474023 and 10674050), the Specialized Research Fund for the Doctoral Program of Higher Education, China (Grant No 20060574006), and the Program for Innovative Research Te

Cite this article: 

Ding Na(丁娜) and Guo Qi(郭旗) The (1+1)-dimensional spatial solitons in media with weak nonlinear nonlocality 2009 Chin. Phys. B 18 4298

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