Dissipative surface solitons in periodic structures

被引：32

作者：

Kartashov, Y. V. ^{[1
,2
]}

Konotop, V. V. ^{[3
,4
]}

Vysloukh, V. A. ^{[5
]}

机构：

[1] ICFO Inst Ciencies Foton, Castelldefels 08860, Barcelona, Spain

[2] Univ Politecn Cataluna, Castelldefels 08860, Barcelona, Spain

[3] Univ Lisbon, Fac Ciencias, Ctr Fis Teor & Computac, P-1649003 Lisbon, Portugal

[4] Univ Lisbon, Fac Ciencias, Dept Fis, P-1649003 Lisbon, Portugal

[5] Univ Americas Puebla, Dipartimento Matemat & Fis, Cholula 72820, Mexico

来源：

EPL | 2010年 / 91卷 / 03期

关键词：

WAVE-GUIDE ARRAYS; OPTICAL LATTICES;

D O I：

10.1209/0295-5075/91/34003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report dissipative surface solitons forming at the interface between a semi-infinite lattice and a homogeneous Kerr medium. The solitons exist due to the balance between amplification in the near-surface lattice channel and two-photon absorption. The stable dissipative surface solitons exist in both focusing and defocusing media, when propagation constants of corresponding states fall into a total semi-infinite or into one of total finite gaps of the spectrum (i.e. in a domain where propagation of linear waves is inhibited for the both media). In a general situation, the surface solitons form when the amplification coefficient exceeds the threshold value. When a soliton is formed in a total finite gap there exists also the upper limit for the linear gain. Copyright (c) EPLA, 2010

引用

页数：5

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