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 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.
Toninelli
C
C
Laboratory of Physical Chemistry and optETH, ETH Zürich, CH-8093 Zürich, Switzerland.
Early
K
K
Bremi
J
J
Renn
A
A
Götzinger
S
S
Sandoghdar
V
V
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