Work

Stimulated downconversion of single-photon emission in a quantum dot placed in a target-frequency microcavity

Year: 2025

Type: article

Abstract: We propose efficient frequency-tunable single-photon sources using stimulated frequency downconversion occurring directly in the quantum dot (QD) inside a microcavity. This microcavity should be designed not for the exciton frequency in the QD but for the target frequency that is set by the difference between the exciton resonance and the stimulating laser energies. This frequency downconversion arises from the second-order nonlinear interaction of an exciton (bright or dark) and a light-hole exciton in the stimulating laser field. We present an analytical model for such a process and evaluate its efficiency for a widely sought-after single-photon source for the C-band telecommunications.

Source: Optics Letters

DOI: 10.1364/ol.550898

Authors: Igor V. Krainov, Maxim V. Rakhlin, Alexey I. Veretennikov, Tatiana V. Shubina

Language: English

Topic: Semiconductor Quantum Structures and Devices

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Russian Science Foundation

Award: G3979205880

OpenAlex ID: W4408505343

FWCI:

Cites: 21

Cited by:

Related to: 10