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Photon antibunching in the fluorescence of a single dye molecule embedded in a thin polymer film

F. Treussart, A. Clouqueur, C. Grossman, and J.-F. Roch, Opt. Lett. 26 150 (2001)

We used scanning confocal microscopy to study the fluorescence from a single terrylene molecule embedded in a thin polymer film of polymethyl methacrylate, at room temperature, with a high signal-to-background ratio. The photon-pair correlation function g(2)(τ) exhibits perfect photon antibunching at τ = 0 and a limit of 1.3, compatible with bunching associated with the molecular triplet state. Application of this molecular system to a triggered single-photon source based on single-molecule fluorescence is investigated.

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