title: Controlling spontaneous emission with plasmonic optical patch antennas.
abstract: We experimentally demonstrate the control of the spontaneous emission rate and the radiation pattern of colloidal quantum dots deterministically positioned in a plasmonic patch antenna. The antenna consists of a thin gold microdisk separated from a planar gold layer by a few tens of nanometers thick dielectric layer. The emitters are shown to radiate through the entire patch antenna in a highly directional and vertical radiation pattern. Strong acceleration of spontaneous emission is observed, depending on the antenna geometry. Considering the double dipole structure of the emitters, this corresponds to a Purcell factor up to 80 for dipoles perpendicular to the disk.
authors: Laboratoire de Photonique et de Nanostructures, CNRS, UPR20, Marcoussis, France.
authors: C
authors: C
authors: Belacel
authors: B
authors: B
authors: Habert
authors: F
authors: F
authors: Bigourdan
authors: F
authors: F
authors: Marquier
authors: J-P
authors: JP
authors: Hugonin
authors: S Michaelis
authors: SM
authors: de Vasconcellos
authors: X
authors: X
authors: Lafosse
authors: L
authors: L
authors: Coolen
authors: C
authors: C
authors: Schwob
authors: C
authors: C
authors: Javaux
authors: B
authors: B
authors: Dubertret
authors: J-J
authors: JJ
authors: Greffet
authors: P
authors: P
authors: Senellart
authors: A
authors: A
authors: Maitre
mesh_terms: D003102:Colloids / Q000737:chemistry*; D004867:Equipment Design; D006046:Gold / Q000737:chemistry*; D008027:Light; D049329:Nanostructures / Q000737:chemistry; D036103:Nanotechnology; D055095:Optics and Photonics; D045663:Quantum Dots; D020349:Surface Plasmon Resonance
chemical_list: D003102:Colloids; D006046:Gold