Martin Lane, Di Giuseppe Giovanni, Perez-Leija Armando, Keil Robert, Dreisow Felix, Heinrich Matthias, Nolte Stefan, Szameit Alexander, Abouraddy Ayman F, Christodoulides Demetrios N, Saleh Bahaa E A
CREOL, The College of Optics & Photonics, University of Central Florida, Orlando, FL 32816, USA.
Opt Express. 2011 Jul 4;19(14):13636-46. doi: 10.1364/OE.19.013636.
We report on the observation of Anderson wave localization in one-dimensional waveguide arrays with off-diagonal disorder. The waveguide elements are inscribed in silica glass, and a uniform random distribution of coupling parameters is achieved by a precise variation of the relative waveguide positions. In the absence of disorder we observe ballistic transport as expected from discrete diffraction in periodic arrays. When off-diagonal disorder is deliberately introduced into the array we observe Anderson localization. The strength of the localization signature increases with higher levels of disorder.
我们报告了在具有非对角无序的一维波导阵列中对安德森波局域化的观测。波导元件刻蚀在石英玻璃中，通过精确改变波导的相对位置实现耦合参数的均匀随机分布。在没有无序的情况下，我们观察到了如周期性阵列中离散衍射所预期的弹道输运。当故意将非对角无序引入阵列时，我们观察到了安德森局域化。局域化特征的强度随着无序程度的增加而增强。
