Details
- Autor(en) / Beteiligte
- Titel
- Controlling Spontaneous Emission with Plasmonic Optical Patch Antennas
- Ist Teil von
- Nano letters, 2013-04, Vol.13 (4), p.1516-1521
- Ort / Verlag
- Washington, DC: American Chemical Society
- Erscheinungsjahr
- 2013
- Link zum Volltext
- Quelle
- MEDLINE
- Beschreibungen/Notizen
- 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.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 1530-6984eISSN: 1530-6992DOI: 10.1021/nl3046602Titel-ID: cdi_hal_primary_oai_HAL_hal_00821543v1
- Format
- –
- Schlagworte
- Antennas, Applied sciences, Collective excitations (including excitons, polarons, plasmons and other charge-density excitations), Colloids - chemistry, Condensed matter: electronic structure, electrical, magnetic, and optical properties, Cross-disciplinary physics: materials science, rheology, Dielectrics, Dipoles, Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures, Electronics, Emitters, Engineering Sciences, Equipment Design, Exact sciences and technology, Gold, Gold - chemistry, Light, Materials science, Molecular electronics, nanoelectronics, Nanocrystalline materials, Nanoscale materials and structures: fabrication and characterization, Nanostructure, Nanostructures - chemistry, Nanotechnology, Optics, Optics and Photonics, Patch antennas, Photonic, Physics, Plasmonics, Quantum Dots, Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices, Spontaneous emission, Surface and interface electron states, Surface Plasmon Resonance