Light dynamics in PT-symmetric multilayers: phase transition, nonreciprocity, and propagation direction locking

Denis V. Novitsky*, Alina Karabchevsky, Andrei V. Lavrinenko, Alexander S. Shalin, Andrey V. Novitsky

*Corresponding author for this work

    Research output: Contribution to journalJournal articleResearchpeer-review

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    Abstract

    We report the numerical study of PT-symmetry breaking in one-dimensional structures with resonantly absorbing and amplifying layers described by the Maxwell-Bloch equations. Temporal dynamics of light interacting with such a structure is governed by strong field amplification and subsequent saturation of loss and gain above the exceptional point resulting in the lasing-like regime with powerful pulses generated both in reflection and transmission. In this regime, we predict and investigate the uniqueness of phase transition due to saturation, transmission nonreciprocity, and the direction locking of the transmitted and reflected radiation.
    Original languageEnglish
    Article number012100
    Book seriesJournal of Physics: Conference Series
    Volume1092
    Issue number1
    Number of pages4
    ISSN1742-6596
    DOIs
    Publication statusPublished - 2018
    EventInternational Conference on Metamaterials and Nanophotonics - Sochi, Russian Federation
    Duration: 17 Sep 201821 Sep 2018

    Conference

    ConferenceInternational Conference on Metamaterials and Nanophotonics
    Country/TerritoryRussian Federation
    CitySochi
    Period17/09/201821/09/2018

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