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Room temperature stable single-photon source

Alexios Beveratos, Sergei Kuehn, Rosa Brouri, Thierry Gacoin, Jean-Philippe Poizat, Philippe Grangier

quant-pharXiv:quant-ph/0110176

Abstract

We report on the realization of a stable solid state room temperature source for single photons. It is based on the fluorescence of a single nitrogen-vacancy (NV) color center in a diamond nanocrystal. Antibunching has been observed in the fluorescence light under both continuous and pulsed excitation. Our source delivers 2*104 single-photon pulses per second at an excitation repetition rate of 10 MHz. The number of two-photon pulses is reduced by a factor of five compared to strongly attenuated coherent sources.

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