Optical mode-controlled topological edge state in waveguide lattice.

ABSTRACT: Topological edge state (TES) has emerged as a significant research focus in photonics due to its unique property of unidirectional transmission. This feature provides immunity to certain structural disorders or perturbations, greatly improving the robustness of photonic systems and enabling various applications such as optical isolation and topological lasers. Nevertheless, most of current researches focus on the fixed generated TES with no means to control, leaving untapped potential for manipulating the TES through specific methods. In this work, we propose a topological Su-Schriffer-Heeger (SSH) waveguides-lattice scheme that enables the controllable TES without changing the topological phase of the system. Light is selectively localized at the edges of the SSH waveguide lattice, which

SUBMITTER: Zhou C 

PROVIDER: S-EPMC11501731 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature