Work

Methodological Approach to the Characterization of Single-Photon Sources Using a Hanbury Brown–Twiss Interferometer in a Laser-Excited Fluorescence Microscope

Year: 2025

Type: article

Abstract: The development of quantum-enhanced technologies requires single-photon sources, as well as methods for their characterization and verification. Here, we describe a methodology for measuring the correlation function of a single-photon source using an experimental setup that comprises a laser-excited fluorescence microscope equipped with a Hanbury Brown–Twiss intensity interferometer as one of the detection systems. Measurements of the response function of the device and the reference samples are performed. The second-order autocorrelation function of the exciton state of GaAs quantum dots in AlGaAs nanowires is obtained and reveals a single-photon emission.

Source: Quantum Beam Science

DOI: 10.3390/qubs9040030

Authors: Sergey Mikushev, Aleksei Kalinichev

Institution: St Petersburg University

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: gold

Estimated APC paid: $1,930

Funders: Saint Petersburg State University, Division of Materials Research