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.
© 2001 Optical Society of America
François Treussart, André Clouqueur, Carl Grossman, and Jean-François Roch, "Photon antibunching in the fluorescence of a single dye molecule embedded in a thin polymer film," Opt. Lett. 26, 1504-1506 (2001)