Heidelberg 2015 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 62: Poster: Quantum Optics and Photonics III
Q 62.54: Poster
Thursday, March 26, 2015, 17:00–19:00, C/Foyer
Rare-earth-ion doped nanocrystals coupled to a fiber-based microcavity — •Tolga Bagci1,2, Thomas Hümmer1,2, Hanno Kaupp1,2, Andreas Weißl1,2, Alban Ferrier3, Philippe Goldner3, Theodor W. Hänsch1,2, and David Hunger1,2 — 1Ludwig-Maximilians-Universität, München, Germany — 2Max-Planck-Institut für Quantenoptik, Garching, Germany — 3Chimie ParisTech, Laboratoire de Chimie de la Matière Condensée de Paris, CNRS-UMR 7574, UPMC Univ Paris 06, Paris, France
Rare-earth-ions doped into solids provide a promising system for quantum optics/information applications due to their narrow linewidths and long-lived quantum coherences. However, their emission rates are typically ultra-low. We present a fiber-based microcavity setup where the emission rate of an Europium-doped nanocrystal (Eu3+:Y2O3) can be enhanced by the Purcell effect, offering the potential for an efficient optical link to single emitters or small ensembles. As a first step, we perform room-temperature confocal microscopy of individual nanocrystals without cavity and assess their fluorescence spectra and emission lifetimes. We furthermore report on our current efforts towards observing Purcell-enhanced emission from ions coupled to a fiber-based microcavity.