Direct Measurement of the Photon Statistics of a Triggered Single Photon Source

Details Direct Measurement of the Photon Statistics of a Triggered Single Photon Source Direct Measurement of the Photon Statistics of a Triggered Single Photon Source

2002-02-22

arxiv.org/abs/quant-ph/0202130v1

Phys. Rev. Lett. 89, 093601 (2002)

Physics

Quantum Physics

4 pages, 3 figures, 1 table submitted to Physical Review Letters

Scientific paper

10.1103/PhysRevLett.89.093601

We studied intensity fluctuations of a single photon source relying on the pulsed excitation of the fluorescence of a single molecule at room temperature. We directly measured the Mandel parameter Q(T) over 4 orders of magnitude of observation timescale T, by recording every photocount. On timescale of a few excitation periods, subpoissonian statistics is clearly observed and the probablility of two-photons events is 10 times smaller than Poissonian pulses. On longer times, blinking in the fluorescence, due to the molecular triplet state, produces an excess of noise.

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