High performance single photon sources from photolithographically defined pillar microcavities
Open Access
- 1 January 2005
- journal article
- Published by Optica Publishing Group in Optics Express
- Vol. 13 (1) , 50-55
- https://doi.org/10.1364/opex.13.000050
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 µm 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.Keywords
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