High performance single photon sources from photolithographically defined pillar microcavities | Zendy

A. J. Bennett | Zendy; D. C. Unitt | Zendy; P. Atkinson | Zendy; D. A. Ritchie | Zendy; A. J. Shields | Zendy

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High performance single photon sources from photolithographically defined pillar microcavities

Author(s) -

A. J. Bennett,

D. C. Unitt,

P. Atkinson,

D. A. Ritchie,

A. J. Shields

Publication year - 2005

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/opex.13.000050

Subject(s) - optics , photon , optoelectronics , purcell effect , materials science , quantum dot , spontaneous emission , pillar , laser , physics , structural engineering , engineering

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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