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Vestnik of Samara University Natural Science Series

Polarization properties of photons in microcavity

V. A. Reshetov

Published Dec 11, 2025• 0 citations
Publisher

Abstract

General expressions for the density matrices of single photons and photon pairs emitted in the microcavity by means of V-STIRAP are obtained for arbitrary values of angular momenta of atomic levels. The dependencies of the degree of polarization of single photons and the degree of entanglement of photon pairs on the polarization of the control laser field are studied numerically for the atomic transitions with the level angular momenta J = 1, 2, characteristic for the experiments.

DOI
10.18287/2541-7525-2025-31-2-69-80

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We study the photon emission from a quantum dot embedded in a microcavity. Incoherent pumping of its excitons and biexciton provokes the emission of leaky and cavity modes. By solving a master equation we obtain the correlation functions required to compute the spectrum and the relative efficiency among the emission of pairs and single photons. A quantum regime appears for low pumping and large rate of emission. By means of a post-selection process, a two beams experiment with different linear polarizations could be performed producing a large polarization entanglement visibility precisely in the quantum regime.