Two-level model of light propagation in photonic lattices and nonlinear Landau-Zener tunneling

被引：5
作者：
Wang Sha [1 ]
Yang Zhi-An [1 ]
机构：
[1] Univ Jinan, Sch Sci, Jinan 250022, Peoples R China
来源：
ACTA PHYSICA SINICA | 2009年 / 58卷 / 06期
关键词：
two-level model; photorefractive medium; photonic lattices; nonlinear Landau-Zener tunneling; SOLITONS;
D O I：
10.7498/aps.58.3699
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We deduce a two-level model of light propagating in photonic lattices of Kerr medium and two kinds of saturated photorefractive medium, establish the classical Hamiltonian system, study the evolution of the phase-space motion of the Hamiltonian system for one kind of saturated photorefractive medium, namely, the Screening medium, and then study the nonlinear Landau-Zener tunneling numerically. Results show that the tunneling probability is enhanced when the nonlinearity is positive while it is restrained when the nonlinearity is negative.
引用
收藏
页码：3699 / 3706
页数：8
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