Abstract

We propose an analytical model for stimulated frequency down-conversion of single-photon emission in a quantum dot placed inside a microcavity designed for a target photon frequency rather than the exciton resonance. The scheme uses second-order nonlinear interaction between bright or dark excitons and a light-hole exciton under stimulating laser pumping, with the target frequency set by the difference between the exciton and laser energies. The model is evaluated for a telecom C-band single-photon source and predicts emission rates approaching the MHz range, with performance comparable under certain conditions to direct emission from an InAs/GaAs quantum dot at 920 nm.

Abstract

We propose an analytical model for stimulated frequency down-conversion of single-photon emission in a quantum dot placed inside a microcavity designed for a target photon frequency rather than the exciton resonance. The scheme uses second-order nonlinear interaction between bright or dark excitons and a light-hole exciton under stimulating laser pumping, with the target frequency set by the difference between the exciton and laser energies. The model is evaluated for a telecom C-band single-photon source and predicts emission rates approaching the MHz range, with performance comparable under certain conditions to direct emission from an InAs/GaAs quantum dot at 920 nm.

Abstract

We propose an analytical model for stimulated frequency down-conversion of single-photon emission in a quantum dot placed inside a microcavity designed for a target photon frequency rather than the exciton resonance. The scheme uses second-order nonlinear interaction between bright or dark excitons and a light-hole exciton under stimulating laser pumping, with the target frequency set by the difference between the exciton and laser energies. The model is evaluated for a telecom C-band single-photon source and predicts emission rates approaching the MHz range, with performance comparable under certain conditions to direct emission from an InAs/GaAs quantum dot at 920 nm.

Abstract

We propose an analytical model for stimulated frequency down-conversion of single-photon emission in a quantum dot placed inside a microcavity designed for a target photon frequency rather than the exciton resonance. The scheme uses second-order nonlinear interaction between bright or dark excitons and a light-hole exciton under stimulating laser pumping, with the target frequency set by the difference between the exciton and laser energies. The model is evaluated for a telecom C-band single-photon source and predicts emission rates approaching the MHz range, with performance comparable under certain conditions to direct emission from an InAs/GaAs quantum dot at 920 nm.