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High performance single photon sources from photolithographically defined pillar microcavities.

Authors
Type
Published Article
Journal
Optics Express
1094-4087
Publisher
The Optical Society
Publication Date
Volume
13
Issue
1
Pages
50–55
Identifiers
PMID: 19488326
Source
Medline
License
Unknown

Abstract

We demonstrate that single photons can be generated from single InAs/GaAs quantum dots in photolithographically defined pillar microcavities. Pillars with a 1.9 microm diameter cavity show a four fold enhancement in the radiative decay rate due to the Purcell effect and a photon collection efficiency into a lens of up to 10%. Measurements of the second order correlation function reveal a greater than fifty fold reduction in the multi-photon emission rate compared to a laser of the same intensity.

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