具有关联与无关联无序的耦合激光器阵列中的同步现象

Random dimer model in pseudo two-dimensional lattices

In this work, we study long-time wave transport in correlated and uncorrelated disordered 2D arrays. When a separation of dimensions is applied to the model, we find that the predicted 1D random dimer phenomenology also appears in so-called pseudo-2D arrays. Therefore, a threshold behavior is observed in terms of the effective size for eigenmodes, as well as in long-time dynam- ics. For this threshold behavior to be observed a minimum system size is required, what is very important when considering a possible experimental realization. For the long-time evolution, we find that for short-range c…

基于光谱-时间不相关布里渊随机光纤激光振荡的并行快速随机比特生成

Parallel fast random bit generation based on spectrotemporally uncorrelated Brillouin random fiber lasing oscillation

本文通过在布里渊随机光纤激光器中协同利用级联受激布里渊散射和准相位匹配四波混频，实现了31个光谱-时间不相关通道的混沌频率梳，并行随机比特生成总速率达1.085 Tbps，突破了多波长激光源用于并行随机比特生成的相关性障碍。

Anderson cross-localization

We report Anderson localization in two-dimensional optical waveguide arrays with disorder in waveguide separation introduced along one axis of the array, in an uncorrelated fashion for each waveguide row. We show that the anisotropic nature of such disorder induces a strong localization along both array axes. The degree of localization in the cross-axis remains weaker than that in the direction in which disorder is introduced. This effect is illustrated both theoretically and experimentally.

Topological Anderson phase in quasi-periodic waveguide lattices

The topological trivial band of a lattice can be driven into a topological phase by disorder in the system. This so-called topological Anderson phase has been predicted and observed for uncorrelated static disorder, while in the presence of correlated disorder conflicting results are found. Here we consider a Su-Schrieffer-Heeger (SSH) waveguide lattice in the trivial topological phase, and show that quasi-periodic disorder in the coupling constants can drive the lattice into a topological non-trivial phase. A method to detect the emergence of the topological Anderson phase, based on light dyn…

无序分类的拓扑学习：超表面设计中的应用

Topological learning for the classification of disorder: an application to the design of metasurfaces

本文提出基于拓扑的数值描述符来定量度量超表面的结构无序，适用于相关与不相关无序，并通过实验验证其在设计受控无序等离激元超表面及关联表面晶格共振方面的准确性，为快速设计无序超表面和优化大规模制备提供工具。