Hamburg 2009 – wissenschaftliches Programm

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SYDD: Defect centers in diamond for applications in quantum optics and nanophotonics

SYDD 2: Defect centers in diamond for applications in quantum optics and nanophotonics II

SYDD 2.5: Vortrag

Freitag, 6. März 2009, 15:45–16:00, Audi-B

Plasmon-enhanced single photon emission from a nano-assembled metal-diamond hybrid structure at room-temperature — •Schietinger Stefan, Michael Barth, Tim Schröder, Thomas Aichele, and Oliver Benson — Nano-Optik, Institut für Physik, Humboldt-Universität zu Berlin, Hausvogteiplatz 5-7, 10117 Berlin, Germany

The controlled coupling of single quantum emitters to metal nanoantennas is one of the most promising, yet challenging tasks in current plasmonic research. It enables directional single photon emission with enhanced rate even for broad-band emitters. Here, we demonstrate the controlled coupling of a single NV-center in a nanodiamond to gold nanoparticles via manipulation with an AFM. While the excitation as well as the radiative emission rate are enhanced by an order of magnitude, the single photon character of the emission is preserved. Our approach provides a route towards novel hybrid systems as building blocks for complex nanophotonic and/or plasmonic devices stable even at room-temperature.