Deterministic Integration of Single Photon Sources in Silicon Based Photonic Circuits

Journal article (2016)

Authors

I.Z. Esmaeil Zadeh Kavli institute of nanoscience Delft, QN/Zwiller Lab
A.W.A. Elshaari QN/Mol. Electronics & Devices , KTH Royal Institute of Technology, Kavli institute of nanoscience Delft
K.D. Jöns KTH Royal Institute of Technology, Kavli institute of nanoscience Delft, QN/Mol. Electronics & Devices
A.W. Fognini Kavli institute of nanoscience Delft, QN/Zwiller Lab
Dan Dalacu National Research Council Canada
Philip J. Poole National Research Council Canada
Michael E. Reimer University of Waterloo
V.G. Zwiller KTH Royal Institute of Technology, Kavli institute of nanoscience Delft, QN/Zwiller Lab
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
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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%.