Anderson localization in optical waveguide arrays with off-diagonal coupling disorder
Anderson localization in optical waveguide arrays with off-diagonal coupling disorder
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DOI：
10.1364/oe.19.013636
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发表时间：
2011-07-04
期刊：
影响因子：
3.8
通讯作者：
Saleh, Bahaa E. A.
中科院分区：
文献类型：
--
作者：
Martin, Lane;Di Giuseppe, Giovanni;Saleh, Bahaa E. A.
本文报道了非对角无序一维波导阵列中安德森波局域化的观测结果。波导元件被刻在石英玻璃中，并且通过相对波导位置的精确变化来实现耦合参数的均匀随机分布。在没有无序的情况下，我们观察到弹道输运预期从离散衍射周期性阵列。当非对角无序故意引入到阵列中，我们观察到安德森本地化。局部化特征的强度随着更高水平的无序而增加。(C)2011年美国光学学会
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. (C) 2011 Optical Society of America