Open AccessCavity assisted emission of single, paired and heralded photons from a single quantum dot device
Author(s) -
Sandra Kühn,
Andreas Knorr,
Stephan Reitzenstein,
Marten Richter
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.025446
Subject(s) - single photon source , physics , photon , quantum dot , optics , purcell effect , spontaneous emission , quantum optics , cavity quantum electrodynamics , coupling (piping) , spontaneous parametric down conversion , resonator , quantum , optoelectronics , quantum mechanics , laser , quantum entanglement , open quantum system , materials science , metallurgy
The photon emission into different spatial directions of a quantum dot in a micropillar cavity is theoretically analyzed. We propose two types of photon emission statistics from a single quantum light device: (i) single photon emission into the axial, strong coupling direction and a two-photon emission into the lateral, weak coupling direction, as well as (ii) the simultaneous use of both emission directions for the temporally ordered generation of two photons within a defined time-bin constituting a heralded single photon source. Our results open up exciting perspectives for solid state based quantum light sources, which can be generalized to any quantum emitter-microcavity system featuring spatially distinct emission channels between the resonator and unconfined modes.