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Large self-deflection of bright and dark screening photovoltaic solitons in LiNbO3

Lu Ke-Qing Zhang Yi-Qi Zhang Lei Zhang Mei-Zhi Li Ke-Hao

Large self-deflection of bright and dark screening photovoltaic solitons in LiNbO3

Lu Ke-Qing, Zhang Yi-Qi, Zhang Lei, Zhang Mei-Zhi, Li Ke-Hao
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  • Abstract views:  3440
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  • Received Date:  27 November 2007
  • Accepted Date:  21 April 2008
  • Published Online:  20 October 2008

Large self-deflection of bright and dark screening photovoltaic solitons in LiNbO3

  • 1. (1)中国科学院西安光学精密机械研究所瞬态光学与光子技术国家重点实验室,西安 710119; (2)中国科学院西安光学精密机械研究所瞬态光学与光子技术国家重点实验室,西安 710119;中国科学院研究生院,北京 100049

Abstract: We demonstrate large self-deflection of both bright and dark screening photovoltaic solitons existing in LiNbO3 crystal under an external applied field with numerical method, and we also demonstrate that the self-deflection is not only connected with the acceptor concentration NA but also with the external applied field E0. Under the same E0, when NA is lower, the self-deflection is more obvious. Under the same NA, when E0 is higher, the self-deflection is more obvious. We also find that self-deflection of the bright screening spatial soliton and that of the dark one are different: the bright screening photovoltaic soliton deflects obviously; while only one side of the dark soliton deflects, its extreme value point and the other side almost do not deflect.

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