Surface solitons due to second order cascaded nonlinearity

被引:5
作者
Agranovich, VM [1 ]
Basko, DM
Boardman, AD
Kamchatnov, AM
Leskova, TA
机构
[1] Russian Acad Sci, Inst Spect, Troitsk 142092, Russia
[2] Univ Salford, Dept Phys, Salford M5 4WT, Lancs, England
关键词
quadratic nonlinearity; solitons;
D O I
10.1016/S0030-4018(98)00643-9
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
In this paper we show theoretically that cascaded surface solitons can exist on the surface of a medium with the bulk inversion symmetry center. Although in the bulk of such media the second order nonlinearity vanishes, chi((2)))= 0, the optical quadratic nonlinearity appears due to the contribution of spatial derivatives of the fields to the nonlinear response, This nonlinearity is localized at the surface and leads to the cascaded chi((2))) surface solitons. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码:114 / 118
页数:5
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