Reprogrammable plasmonic topological insulators with ultrafast control.

ABSTRACT: Topological photonics has revolutionized our understanding of light propagation, providing a robust way to manipulate light. So far, most of studies in this field are focused on designing a static photonic structure. Developing a dynamic photonic topological platform to switch multiple topological functionalities at ultrafast speed is still a great challenge. Here we theoretically propose and experimentally demonstrate a reprogrammable plasmonic topological insulator, where the topological propagation route can be dynamically changed at nanosecond-level switching time, leading to an experimental demonstration of ultrafast multi-channel optical analog-digital converter. Due to the innovative use of electric switches to implement the programmability of plasmonic topological insulator, each u

SUBMITTER: You JW 

PROVIDER: S-EPMC8443663 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature