Topology in Photonic Space-Time Crystals

Ohad Segal,Eran Lustig,Yonatan Sharabi,Moshe-Ishay Cohen,Ron Ziv,Mark Lyubarov,Alex Dikopoltsev,Mordechai Segev

Conference on Lasers and Electro-Optics（2022）

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摘要

We introduce topological phases in photonic space-time crystals, which have gaps in both momentum and frequency. We show that edge states waves refracted and reflected from spatial and temporal interfaces are governed by topological invariants.

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关键词

crystals,topology,space-time

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