Triggered single photons from a quantum dot

Details Triggered single photons from a quantum dot Triggered single photons from a quantum dot

2000-12-20

arxiv.org/abs/cond-mat/0012379v1

Phys. Rev. Lett. 86, 1502 (2001)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures, RevTex, to be published in PRL

Scientific paper

10.1103/PhysRevLett.86.1502

We demonstrate a new method for generating triggered single photons. After a laser pulse generates excitons inside of a single quantum dot, electrostatic interactions between them and the resulting spectral shifts allow a single emitted photon to be isolated. Autocorrelation measurements show a reduction of the two-photon probability to 0.12 times the value for Poisson light. Strong anti-bunching persists when the emission is saturated. The emitted photons are also polarized.

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