Near-infrared single-photons from aligned molecules in ultrathin crystalline films at room temperature

We investigate the optical properties of Dibenzoterrylene (DBT) molecules in a spin-coated crystalline film of anthracence. By performing single molecule studies, we show that the dipole moments of the DBT molecules are oriented parallel to the plane of the film. Despite a film thickness of only 20...

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Bibliographic Details
Published in:Optics express 2010-03, Vol.18 (7), p.6577-6582
Main Authors: Toninelli, C, Early, K, Bremi, J, Renn, A, Götzinger, S, Sandoghdar, V
Format: Article
Language:English
Subjects:
Crystallization
Lasers
Light
Microscopy - methods
Nanoparticles
Nanotechnology - methods
Optics and Photonics
Photons
Quantum Theory
Spectroscopy, Near-Infrared - methods
Temperature
Time Factors
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Summary:We investigate the optical properties of Dibenzoterrylene (DBT) molecules in a spin-coated crystalline film of anthracence. By performing single molecule studies, we show that the dipole moments of the DBT molecules are oriented parallel to the plane of the film. Despite a film thickness of only 20 nm, we observe an exceptional photostability at room temperature and photon count rates around 10(6) per second from a single molecule. These properties together with an emission wavelength around 800 nm make this system attractive for applications in nanophotonics and quantum optics.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.18.006577