论文标题
拓扑低维离散液晶晶体阵列中的光学泵送运输和非线性切换
Optical Thouless pumping transport and nonlinear switching in a topological low-dimensional discrete nematic liquid crystal array
论文作者
论文摘要
从理论上讲，当以离散的nematic液体晶体排列实现时，我们从理论上研究了单个和多个带隙系统的1D拓扑su-schrieffer-heeger（SSH）模型。对于电气控制的SSH波导阵列，我们在数值下显示低功率水平的边缘到边缘光传输。另一方面，在较高的力量下，传输被光引起的非线性缺陷状态挫败，从而产生了强大的全光开关。
We theoretically investigate a Thouless pumping scheme in the 1D topological Su-Schrieffer-Heeger (SSH) model for single and multiple band-gaps systems when implemented in a discrete nematic liquid crystal arrangement. For an electrically controlled SSH waveguide array, we numerically demonstrate edge-to-edge light transport at low power levels. On the other hand, at higher powers, the transport is frustrated by light-induced nonlinear defect states, giving rise to robust all-optical switching.
