Enhanced single-photon emission from a quantum dot in a micropost microcavity
Preprint
- 4 July 2003
Abstract
We demonstrate a single-photon source based on a quantum dot in a micropost microcavity that exhibits a large Purcell factor together with a small multi-photon probability. For a quantum dot on resonance with the cavity, the spontaneous emission rate is increased by a factor of five, while the probability to emit two or more photons in the same pulse is reduced to 2% compared to a Poisson-distributed source of the same intensity. In addition to the small multi-photon probability, such a strong Purcell effect is important in a single-photon source for improving the photon outcoupling efficiency and the single-photon generation rate, and for bringing the emitted photon pulses closer to the Fourier transform limit.Keywords
All Related Versions
- Version 1, 2003-07-04, ArXiv
- Published version: Applied Physics Letters, 82 (21), 3596.