Metamorphic Buffer Layer Platform for 1550 nm Single-Photon Sources Grown by MBE on (100) GaAs Substrate
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- We demonstrate single-photon emission with a low probability of multiphoton events of 5% in the C-band of telecommunication spectral range of standard silica fibers from molecular beam epitaxy grown (100)-GaAs-based structure with InAs quantum dots (QDs) on a metamorphic buffer layer. For this purpose, we propose and implement graded In content digitally alloyed InGaAs metamorphic buffer layer with maximal In content of 42% and GaAs/AlAs distributed Bragg reflector underneath to enhance the extraction efficiency of QD emission. The fundamentalWe demonstrate single-photon emission with a low probability of multiphoton events of 5% in the C-band of telecommunication spectral range of standard silica fibers from molecular beam epitaxy grown (100)-GaAs-based structure with InAs quantum dots (QDs) on a metamorphic buffer layer. For this purpose, we propose and implement graded In content digitally alloyed InGaAs metamorphic buffer layer with maximal In content of 42% and GaAs/AlAs distributed Bragg reflector underneath to enhance the extraction efficiency of QD emission. The fundamental limit of the emission rate for the investigated structures is 0.5 GHz based on an emission lifetime of 1.95 ns determined from time-resolved photoluminescence. We prove the relevance of a proposed technology platform for the realization of non-classical light sources in the context of fiber-based quantum communication applications.…
Autor(en): | Piotr Andrzej Wroński, Paweł Wyborski, Anna Musiał, Paweł Podemski, Grzegorz Sęk, Sven Höfling, Fauzia Jabeen |
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URN: | urn:nbn:de:bvb:20-opus-246145 |
Dokumentart: | Artikel / Aufsatz in einer Zeitschrift |
Institute der Universität: | Fakultät für Physik und Astronomie / Physikalisches Institut |
Sprache der Veröffentlichung: | Englisch |
Titel des übergeordneten Werkes / der Zeitschrift (Englisch): | Materials |
ISSN: | 1996-1944 |
Erscheinungsjahr: | 2021 |
Band / Jahrgang: | 14 |
Heft / Ausgabe: | 18 |
Aufsatznummer: | 5221 |
Originalveröffentlichung / Quelle: | Materials 2021, 14(18), 5221; https://doi.org/10.3390/ma14185221 |
DOI: | https://doi.org/10.3390/ma14185221 |
Allgemeine fachliche Zuordnung (DDC-Klassifikation): | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Freie Schlagwort(e): | metamorphic buffer layer; quantum dots; single-photon source; telecommunication spectral range |
Datum der Freischaltung: | 11.01.2022 |
Datum der Erstveröffentlichung: | 10.09.2021 |
EU-Projektnummer / Contract (GA) number: | 721394 |
OpenAIRE: | OpenAIRE |
Open-Access-Publikationsfonds / Förderzeitraum 2021 | |
Lizenz (Deutsch): | CC BY: Creative-Commons-Lizenz: Namensnennung 4.0 International |