Deterministic Integration of Single Photon Sources in Silicon Based Photonic Circuits

Journal article (2016)

Authors

I.Z. Esmaeil Zadeh QN/Zwiller Lab , Kavli institute of nanoscience Delft
A.W.A. Elshaari QN/Mol. Electronics & Devices , Kavli institute of nanoscience Delft, KTH Royal Institute of Technology
K.D. Jöns KTH Royal Institute of Technology, Kavli institute of nanoscience Delft, QN/Mol. Electronics & Devices
A.W. Fognini QN/Zwiller Lab , Kavli institute of nanoscience Delft
Dan Dalacu National Research Council Canada
Philip J. Poole National Research Council Canada
Michael E. Reimer University of Waterloo
V.G. Zwiller QN/Zwiller Lab , Kavli institute of nanoscience Delft, KTH Royal Institute of Technology
Research Group
QN/Zwiller Lab
Copyright: © 2016 I.Z. Esmaeil Zadeh, A.W.A. Elshaari, K.D. Jöns, A.W. Fognini, Dan Dalacu, Philip J. Poole, Michael E. Reimer, V.G. Zwiller
DOI: https://doi.org/10.1021/acs.nanolett.5b04709
More Info
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Published Date

2016

Language

English

Research Group

QN/Zwiller Lab

Abstract

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%.