Temperature control of electromagnetic topological edge states

Georgiy Kurganov, Dmitry Dobrykh, Ekaterina Puhtina, Ildar Yusupov, Alexey Slobozhanyuk, Yuri S. Kivshar, Dmitry Zhirihin*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)

    Abstract

    Topological photonics provides exceptional opportunities to control electromagnetic waves with a great potential for applications. Most of the proposed photonic systems support topological edge states with fixed parameters, thus hindering their practical applications. The study of nonlinear and tunable effects in topological systems enlarges applications of topological phenomena. Here, we propose an approach for the manipulation of photonic topological edge states based on temperature tuning. We design and demonstrate experimentally topological zigzag arrays composed of high-index resonators. The resonators are fabricated from ferroelectrics that brings an opportunity to dynamically change their permittivity by heating. We study the emergence of topological edge states in zigzag arrays of ferroelectric particles supporting the Mie resonances and demonstrate the topological transition induced by heating individual resonators in the array.

    Original languageEnglish
    Article number233105
    JournalApplied Physics Letters
    Volume120
    Issue number23
    DOIs
    Publication statusPublished - 6 Jun 2022

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