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Deterministic Integration of Single Photon Sources in Silicon Based Photonic Circuits
KTH, School of Electrical Engineering (EES). Delft Univ Technol, Netherlands. (QUANTUM NANO PHOTONICS)ORCID iD: 0000-0002-7004-9665
KTH, School of Electrical Engineering (EES). Delft Univ Technol, Netherlands. (QUANTUM NANO PHOTONICS)
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2016 (English)In: Nano letters (Print), ISSN 1530-6984, E-ISSN 1530-6992, Vol. 16, no 4, 2289-2294 p.Article in journal (Refereed) PublishedText
Abstract [en]

A major step toward fully integrated quantum optics is the deterministic incorporation of high quality single photon sources in on-chip optical circuits. We show a novel hybrid approach in which preselected III-V single quantum dots in nanowires are transferred and integrated in silicon based photonic circuits. The quantum emitters maintain their high optical quality after integration as verified by measuring a low multiphoton probability of 0.07 +/- 0.07 and emission line width as narrow as 3.45 +/- 0.48 GHz. Our approach allows for optimum alignment of the quantum dot light emission to the fundamental waveguide mode resulting in very high coupling efficiencies. We estimate a coupling efficiency of 24.3 +/- 1.7% from the studied single-photon source to the photonic channel and further show by finite-difference time-domain simulations that for an optimized choice of material and design the efficiency can exceed 90%.

Place, publisher, year, edition, pages
2016. Vol. 16, no 4, 2289-2294 p.
Keyword [en]
Integrated quantum optics, nanowire quantum dot, single-photons, hybrid photonics
National Category
Condensed Matter Physics
URN: urn:nbn:se:kth:diva-186564DOI: 10.1021/acs.nanolett.5b04709ISI: 000374274600024PubMedID: 26954298OAI: diva2:928004

QC 20160513

Available from: 2016-05-13 Created: 2016-05-13 Last updated: 2016-05-13Bibliographically approved

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Elshaari, Ali W.Jöns, Klaus D.Zwiller, Val
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