Topology in Photonic Space-Time Crystals

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

doi:10.1364/CLEO_AT.2022.JW4A.4

Conference on Lasers and Electro-Optics
Technical Digest Series (Optica Publishing Group, 2022),
paper JW4A.4
•https://doi.org/10.1364/CLEO_AT.2022.JW4A.4

Topology in Photonic Space-Time Crystals

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

CLEO: Applications and Technology 2022

San Jose, California United States
15–20 May 2022
ISBN: 978-1-957171-05-0

From the session
Symposium on Novel Phenomena in Time-Variant Photonics I (JW4A)

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O. Segal, E. Lustig, Y. Sharabi, M. Cohen, R. Ziv, M. Lyubarov, A. Dikopoltsev, and M. Segev, "Topology in Photonic Space-Time Crystals," in Conference on Lasers and Electro-Optics, Technical Digest Series (Optica Publishing Group, 2022), paper JW4A.4.

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Abstract

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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