Quantum Light Source Based on Semiconductor Quantum Dots: A Review

Abstract

Quantum light sources that generate single photons and entangled photons have important applications in the fields of secure quantum communication and linear optical quantum computing. Self-assembled semiconductor quantum dots, also known as “artificial atoms”, have discrete energy-level structures due to electronic confinement in all three spatial dimensions. It has the advantages of high stability, high brightness, deterministic, and tunable emission wavelength, and is easy to integrate into an optical microcavity with a high-quality factor, which can realize a high-performance quantum light source. In this paper, we first introduce the generation principles, properties, and applications of single-photon sources in the field of quantum information and then present implementations and development of quantum light sources in self-assembled semiconductor quantum dot materials. Finally, we conclude with an outlook on the future development of semiconductor quantum dot quantum light sources.

Nonlinearity Measurement of Si Transferring Photodetector in the Low Radiation Flux Range

“…A single-photon source as the core device for quantum radiometry [2,3] is available in many reliable methods. For example, quantum-dots-based single-photon source [4], the molecule-based single-photon source [5], and correlated photon source using spontaneous parametric down-conversion (SPDC) [6], etc. However, the practical application of single-photon sources will involve the transfer of standards [7][8][9].…”