论文标题
混合量子系统非线性光学响应的拓扑控制
Topological control of the nonlinear-optical response of hybrid quantum systems
论文作者
论文摘要
我们将一维超晶格的拓扑特性映射到电子系统的光学特性。我们发现，非线性光学响应是针对生活在拓扑保护边缘状态和离域特征状态之间过渡形态中的电子中优化的。这提供了一种调整混合量子系统非线性光学响应的新方法。我们展示了这些特征如何用于模仿可饱和吸收，并说明了如何使用“量子线”来构建有效的全光开关。
We map the topological properties of a one dimensional superlattice to the optical properties of an electronic system. We find that the nonlinear-optical response is optimized for electrons that live in the transitional morphology between topologically protected edge states and delocalized eigenstates. This provides a novel means of tuning the nonlinear-optical response of hybrid quantum systems. We show how these characteristics can be used to mimic saturable absorption and illustrate how `quantum cords' can be used to build an efficient all-optical switch.
