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Applied Physics Letters / Volume 95 / Issue 26 / STRUCTURAL, MECHANICAL, THERMODYNAMIC, AND OPTICAL PROPERTIES OF CONDENSED MATTER

Appl. Phys. Lett. 95, 261908 (2009); http://dx.doi.org/10.1063/1.3275702 (3 pages)

Toward quantum interference of photons from independent quantum dots

M. Benyoucef1,2, L. Wang2, A. Rastelli1, and O. G. Schmidt1

1Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstr. 20, D-01069 Dresden, Germany
2Max-Planck-Institut für Festkörperforschung, Heisenbergstr. 1, D-70569 Stuttgart, Germany

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(Received 23 August 2009; accepted 25 November 2009; published online 31 December 2009)

The authors present steps toward the experimental realization of indistinguishable single photon sources based on independent unstrained GaAs quantum dots (QDs), which are embedded in planar cavities to improve the light collection efficiency. The emission lines of two QDs are brought into resonance and overlapped at a beam splitter. The coherence properties of the emitted photons are investigated by measuring the first-order field correlation function. Despite the fact that the short dephasing time of the selected QDs prevents us to observe quantum interference between the two photons, the approach could be applied to other QDs.

© 2009 American Institute of Physics

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KEYWORDS and PACS

Keywords

gallium arsenide, III-V semiconductors, optical beam splitters, photoluminescence, quantum interference phenomena, semiconductor quantum dots

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3275702

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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