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
CountryRussian Federation
CitySochi
Period17/09/201821/09/2018

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