TITLE

Single-photon emission from InGaAs quantum dots grown on (111) GaAs

AUTHOR(S)
Stock, Erik; Warming, Till; Ostapenko, Irina; Rodt, Sven; Schliwa, Andrei; Töfflinger, Jan Amaru; Lochmann, Anatol; Toropov, Aleksandr I.; Moshchenko, Sergej A.; Dmitriev, Dimitry V.; Haisler, Vladimir A.; Bimberg, Dieter
PUB. DATE
March 2010
SOURCE
Applied Physics Letters;3/1/2010, Vol. 96 Issue 9, p093112
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this letter, we demonstrate that self-organized InGaAs quantum dots (QDs) grown on GaAs (111) substrate using droplet epitaxy have great potential for the generation of entangled photon pairs. The QDs show spectrally sharp luminescence lines and low spatial density. A second order correlation value of g(2)(0)<0.3 proves single-photon emission. By comparing the power dependence of the luminescence from a number of QDs we identify a typical luminescence fingerprint. In polarization dependent microphotoluminescence studies a fine-structure splitting ranging ≤40 μeV down to the determination limit of our setup (10 μeV) was observed.
ACCESSION #
48428966

 

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