title: Deterministic Integration of Single Photon Sources in Silicon Based Photonic Circuits.
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%.
authors.affiliation: Kavli Institute of Nanoscience Delft, Delft University of Technology , Delft 2628 CJ, The Netherlands.
authors.forename: Iman Esmaeil
authors.initials: IE
authors.lastname: Zadeh
authors.affiliation: Kavli Institute of Nanoscience Delft, Delft University of Technology , Delft 2628 CJ, The Netherlands.|Department of Applied Physics, Royal Institute of Technology (KTH) , Stockholm 106 91, Sweden.
authors.forename: Ali W
authors.initials: AW
authors.lastname: Elshaari
authors.affiliation: Kavli Institute of Nanoscience Delft, Delft University of Technology , Delft 2628 CJ, The Netherlands.|Department of Applied Physics, Royal Institute of Technology (KTH) , Stockholm 106 91, Sweden.
authors.forename: Klaus D
authors.initials: KD
authors.lastname: Jöns
authors.affiliation: Kavli Institute of Nanoscience Delft, Delft University of Technology , Delft 2628 CJ, The Netherlands.
authors.forename: Andreas
authors.initials: A
authors.lastname: Fognini
authors.affiliation: National Research Council of Canada , Ottawa, ON K1A 0R6, Canada.
authors.forename: Dan
authors.initials: D
authors.lastname: Dalacu
authors.affiliation: National Research Council of Canada , Ottawa, ON K1A 0R6, Canada.
authors.forename: Philip J
authors.initials: PJ
authors.lastname: Poole
authors.affiliation: Institute for Quantum Computing and Department of Electrical & Computer Engineering, University of Waterloo , Waterloo, ON N2L 3G1, Canada.
authors.forename: Michael E
authors.initials: ME
authors.lastname: Reimer
authors.affiliation: Kavli Institute of Nanoscience Delft, Delft University of Technology , Delft 2628 CJ, The Netherlands.|Department of Applied Physics, Royal Institute of Technology (KTH) , Stockholm 106 91, Sweden.
authors.forename: Val
authors.initials: V
authors.lastname: Zwiller
keywords: Integrated quantum optics; hybrid photonics; nanowire quantum dot; single-photons