Physics – Quantum Physics
Scientific paper
2004-10-04
Appl. Phys. Lett. 85, 6251 (2004)
Physics
Quantum Physics
4 pages, 3 figures, to appear in Appl. Phys. Lett
Scientific paper
10.1063/1.1842370
We report correlation and cross-correlation measurements of photons emitted under continuous wave excitation by a single II-VI quantum dot (QD) grown by molecular-beam epitaxy. A standard technique of microphotoluminescence combined with an ultrafast photon correlation set-up allowed us to see an antibunching effect on photons emitted by excitons recombining in a single CdTe/ZnTe QD, as well as cross-correlation within the biexciton ($X_{2}$)-exciton ($X$) radiative cascade from the same dot. Fast microchannel plate photomultipliers and a time-correlated single photon module gave us an overall temporal resolution of 140 ps better than the typical exciton lifetime in II-VI QDs of about 250ps.
Couteau Christophe
Gaj Jan A.
Gérard Jean-Marc
Kheng Kuntheak
Mariette Henri
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