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Nonlinear behavior ...
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Pozina, GaliaLinköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
(author)
Nonlinear behavior of the emission in the periodic structure of InAs monolayers embedded in a GaAs matrix
- Article/chapterEnglish2017
Publisher, publication year, extent ...
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2016-09-22
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WILEY-V C H VERLAG GMBH,2017
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:liu-137095
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-137095URI
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https://doi.org/10.1002/pssb.201600402DOI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Funding Agencies|Russian Science Foundation [16-12-10503]; Swedish Research Council (VR); Swedish Government Strategic Research Area in Materials Science on Functional Materials (AFM); FP7 IRSES HyMeCav; FP7 ITN NOTEDEV
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We report time-resolved photoluminescence (TRPL) measurements performed at different temperatures for the Bragg structure containing 60 InAs monolayer-based quantum wells (QWs) periodically arranged in a GaAs matrix. TRPL data reveal an appearance of the additional superradiant (SR) mode originated from coherent collective interaction of QWs. The SR mode is not manifested in the case if a small number of QWs is excited, then only an exciton emission related to the InAs QWs dominates the PL spectrum. The SR mode demonstrates a superlinear dependence of the intensity and radiative decay rate on the excitation power and its intensity increases at elevated temperatures compared to the excitonic emission. The photoluminescence delay time is much shorter for the SR mode indicating that the relaxation of hot excitons can occur via stimulated scattering processes. The specific behavior of the SR emission can have a strong potential for different applications such as optical logic devices, superluminescent diodes, optical switches, and low-threshold lasers. Time-resolved photoluminescence image at low temperature for the Bragg structure consisting of InAs monolayer-based quantum wells (inset).
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Kaliteevski, Mikhail A.St Petersburg Academic University, Russia; Russian Academic Science, Russia; ITMO University, Russia
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Nikitina, Ekaterina V.St Petersburg Academic University, Russia; Russian Academic Science, Russia
(author)
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Denisov, Dmitrii V.St Petersburg Academic University, Russia; Russian Academic Science, Russia
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Polyakov, Nikolai K.St Petersburg Academic University, Russia
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Pirogov, Evgenii V.St Petersburg Academic University, Russia
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Goray, Leonid I.St Petersburg Academic University, Russia; ITMO University, Russia; Institute Analyt Instrumentat, Russia
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Gubaydullin, Azat R.St Petersburg Academic University, Russia; ITMO University, Russia
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Ivanov, Konstantin A.ITMO University, Russia
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Kaliteevskaya, Natalia A.St Petersburg Academic University, Russia; ITMO University, Russia; University of Durham, England
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Egorov, Anton Yu.Russian Academic Science, Russia; ITMO University, Russia
(author)
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Linköpings universitetTunnfilmsfysik
(creator_code:org_t)
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In:Physica status solidi. B, Basic research: WILEY-V C H VERLAG GMBH254:40370-19721521-3951
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