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IEEE Lasers and Electro-Optics Society Annual Meeting (LEOS)

Single photon sources based on InP and CdSe QDs

Thomas Aichele, Val Zwiller, Oliver J. Benson

Published Sep 20, 2004• 0 citations
Publisher

Abstract

In this paper, we report on recent experimental realizations of single photon sources based on InP and CdSe quantum dots. In order to demonstrate the use of single photons on demand we present an experimental demonstration of quantum key distribution protocol using photons from a single quantum dot.
DOI
10.1109/leos.2003.1253043

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In this paper we report recent results on single-photon generation with single InP and CdSe quantum dots. These dots produce single-photons on demand in the visible spectral range 510–690 nm. The emitted photoluminescence was characterized by measuring the autocorrelation function and by performing Fourier spectroscopy on several transitions in the quantum dot. We present the observation and interpretation of carrier trapping and recapture in InP quantum dots which leads to anomalies in the measured correlation functions. Our interpretation is confirmed by numerical simulations based on a rate equation model.
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