Photonic topological phase transition on demand

Nanophotonics

article

Zhaxylyk A. Kudyshev¹  Alexander V. Kildishev¹  Alexandra Boltasseva¹  Vladimir M. Shalaev¹ 

[1] School of Electrical and Computer Engineering and Birck Nanotechnology Center, Purdue University

关键词: photonic topological insulator;    topological phase transition;    tunable topology;   

DOI  :  10.1515/nanoph-2019-0043

学科分类：社会科学、人文和艺术（综合）

来源: De Gruyter

【 摘 要 】

On-demand, switchable phase transitions between topologically nontrivial and trivial photonic states are demonstrated. Specifically, it is shown that the integration of a two-dimensional array of coupled ring resonators within a thermal heater array enables unparalleled control over topological protection of photonic modes. Importantly, auxiliary control over a spatial phase modulation opens up a way to guide topologically protected edge modes along generated virtual boundaries. The proposed approach can lead to practical realizations of topological phase transitions in many photonic applications, including topologically protected photonic memory/logic devices, robust optical modulators, and switches.

【 授权许可】

CC BY