一维光波导阵列的安德逊局域化  

Anderson Localization in One-dimensional Waveguide Lattices

作　　者：何江[1] 

机构地区：[1]暨南大学物理系,广州510632

出　　处：《科学技术与工程》2011年第2期251-256,共6页Science Technology and Engineering

摘　　要：采用数值模拟的方法,研究了一维光波导阵列的安德逊模型。结果表明,安德逊模型的引入,会导致光波导阵列光波传导的性质的改变。对角无序导致的局域化现象,导致光波经历一段时间传播后会局域到特定位点。而随着无序度的提高,系统中局域态的数目会增加,而单一局域态的定域化长度会减小。Based on the numerical simulation the Anderson model is discussed in one-dimensional waveguide lattices.The result shows that：it is the Anderson localization that strongly affects the properties of light＇s propagation in the waveguides.The lacalized phoenomenon caused by the diagonal disorder is that light will propagate in some specific sites after a period of time.With the improvement of the disorder,the number of localized state increases,and the lacalization length of one localized state decreases.

关 键 词：光波导 安德逊模型 对角无序 本征态演化 

分 类 号：TN29[电子电信—物理电子学]