%0 Journal Article
%T Two-level model of light propagation in photonic lattices and nonlinear Landau-Zener tunneling<br>光子晶格中光束演化的二能级模型及非线性Landau-Zener隧穿
%A Wang Sha
%A Yang Zhi-An
%A <br>王沙
%A 杨志安
%J 物理学报
%D 2009
%I 
%X 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.
%K two-level model
%K photorefractive medium
%K photonic lattices
%K nonlinear Landau-Zener tunneling<br>二能级模型，
%K 光折变介质，
%K 光子晶格，
%K 非线性Landau-Zener隧穿
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=DF7455404E9F7A5ED3880BB12F395F64&yid=DE12191FBD62783C&vid=9FFCC7AF50CAEBF7&iid=B31275AF3241DB2D&sid=BE4FB15239288221&eid=D552E861DE620E2D&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0