Observation of surface gap solitons in semi-infinite waveguide arrays

被引：189

作者：

Rosberg, Christian R. ^{[1
]}

Neshev, Dragomir N.

Krolikowski, Wieslaw

Mitchell, Arnan

Vicencio, Rodrigo A.

Molina, Mario I.

Kivshar, Yuri S.

机构：

[1] Australian Natl Univ, Nonlinear Phys Ctr, CUDOS, Res Sch Phys Sci & Engn, Canberra, ACT, Australia

[2] Australian Natl Univ, Laser Phys Ctr, CUDOS, Res Sch Phys Sci & Engn, Canberra, ACT, Australia

[3] RMIT Univ, Sch Elect & Comp Syst Engn, Melbourne, Vic, Australia

[4] Max Planck Inst Phys Komplexer Syst, Dresden, Germany

[5] Univ Chile, Fac Ciencias, Dept Fis, Santiago, Chile

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.97.083901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the observation of surface gap solitons found to exist at the interface between uniform and periodic dielectric media with defocusing nonlinearity. We demonstrate strong self-trapping at the edge of a LiNbO3 waveguide array and the formation of staggered surface solitons with propagation constant inside the first photonic band gap. We study the crossover between linear repulsion and nonlinear attraction at the surface, revealing the mechanism of nonlinearity-mediated stabilization of the surface gap modes.

引用

页数：4

共 20 条

[1]

BOARDMAN AD, 1991, NONLINEAR SURFACE EL, V29, P73

[2] Discrete diffraction and spatial gap solitons in photovoltaic LiNbO3 waveguide arrays [J].