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dc.contributor.authorNovitsky, D.V.-
dc.contributor.authorKarabchevsky, A.-
dc.contributor.authorLavrinenko, A.V.-
dc.contributor.authorShalin, A.S.-
dc.contributor.authorNovitsky, Andrey V.-
dc.date.accessioned2021-04-27T09:55:32Z-
dc.date.available2021-04-27T09:55:32Z-
dc.date.issued2018-
dc.identifier.citationPhys Rev B 2018;98(12).ru
dc.identifier.urihttps://elib.bsu.by/handle/123456789/259079-
dc.description.abstractUsing the Maxwell-Bloch equations for resonantly absorbing and amplifying media, we study the temporal dynamics of light propagation through the PT-symmetric structures with alternating loss and gain layers. This approach allows us to precisely describe the response of the structure near the exceptional points of PT symmetry breaking phase transition and, in particular, take into account the nonlinear effect of loss and gain saturation in the PT symmetry broken state. We reveal that in this latter state the multilayer system possesses a lasinglike behavior, releasing the pumped energy in the form of powerful pulses. We predict locking of pulse direction due to the PT symmetry breaking, as well as saturation-induced irreversibility of phase transition and nonreciprocal transmission.ru
dc.description.sponsorshipBelarusian Republican Foundation for Fundamental Research (Projects No. F16K-016 and No. F18R-021), the Russian Foundation for Basic Research (Projects No. 18-02-00414, No. 18-52-00005, and No. 18-32-00160), Ministry of Education and Science of the Russian Federation (GOSZADANIE, Grant No. 3.4982.2017/6.7), Government of Russian Federation (Grant No. 08-08), and the Israeli Ministry of Trade and Labor Kamin Program (Grant No. 62045). Numerical simulations of light interaction with resonant media were supported by the Russian Science Foundation (Project No. 17-72-10098). The calculations of field distributions were supported by the Russian Science Foundation (Project No. 16-12-10287). Partial financial support from Villum Fonden (the DarkSILD project) is acknowledged.ru
dc.language.isoenru
dc.publisherAmerican Physical Societyru
dc.subjectЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физикаru
dc.titlePT symmetry breaking in multilayers with resonant loss and gain locks light propagation directionru
dc.typearticleru
dc.rights.licenseCC BY 4.0ru
dc.identifier.DOI10.1103/PhysRevB.98.125102-
dc.identifier.scopus85053163002-
Располагается в коллекциях:Кафедра теоретической физики и астрофизики (статьи)

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