随机性
非周期图
安德森本地化
物理
实现(概率)
统计物理学
光学
凝聚态物理
数学
统计
组合数学
作者
Jadranka Vasiljevic,Alessandro Zannotti,Dejan Timotijevic,Cornelia Denz,Dragana Jovic Savic
出处
期刊:Optics Letters
[The Optical Society]
日期:2021-12-09
卷期号:47 (3): 702-702
被引量:2
摘要
Complex optical systems such as deterministic aperiodic Mathieu lattices are known to hinder light diffraction in a manner comparable to randomized optical systems. We systematically incorporate randomness in our complex optical system, measuring its relative contribution of randomness, to understand the relationship between randomness and complexity. We introduce an experimental method for the realization of disordered aperiodic Mathieu lattices with numerically controlled disorder degree. Added disorder always enhances light transport. For lower disorder degrees, we observe diffusive-like transport, and in the range of highest light transport, we detect Anderson localization. With further increase of disorder degree, light transport is slowly decreasing and localization length decreases indicating more pronounced Anderson localization. Numerical investigation at longer propagation distances indicates that the threshold of Anderson localization detection is shifted to lower disorder degrees.
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