title: Near-infrared single-photons from aligned molecules in ultrathin crystalline films at room temperature.
abstract: 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.
authors.affiliation: Laboratory of Physical Chemistry and optETH, ETH Zürich, CH-8093 Zürich, Switzerland.
authors.forename: C
authors.initials: C
authors.lastname: Toninelli
authors.forename: K
authors.initials: K
authors.lastname: Early
authors.forename: J
authors.initials: J
authors.lastname: Bremi
authors.forename: A
authors.initials: A
authors.lastname: Renn
authors.forename: S
authors.initials: S
authors.lastname: Götzinger
authors.forename: V
authors.initials: V
authors.lastname: Sandoghdar
mesh_terms: D003460:Crystallization; D007834:Lasers; D008027:Light; D008853:Microscopy / Q000379:methods; D053758:Nanoparticles; D036103:Nanotechnology / Q000379:methods; D055095:Optics and Photonics; D017785:Photons; D011789:Quantum Theory; D019265:Spectroscopy, Near-Infrared / Q000379:methods*; D013696:Temperature; D013997:Time Factors