Erlangen 2018 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 44: Quantum Effects (Cavity QED)
Q 44.4: Vortrag
Mittwoch, 7. März 2018, 15:00–15:15, K 1.013
Towards electrooptically controlled cavity QED with rare-earth ion doped lithium niobate — •Thomas Kornher1, Roman Kolesov1, Kangwei Xia2, Hans-Werner Becker3, and Jörg Wrachtrup1 — 13. Physikalisches Institut, Universtät Stuttgart, Stuttgart, Germany — 2Department of Physics, The Chinese University of Hong Kong, Hong Kong, China — 3RUBION, Ruhr-Universitat Bochum, Bochum, Germany
Rare-earth ions doped into crystals are known for narrow optical transitions, long spin coherence times and optical access to their nuclear spins, which makes them suitable for quantum information storage applications. Boosting the emission rate of long-lived radiative transitions exhibited by rare-earth ions doped into solid hosts by means of micro-resonators can provide enhanced spin initialization for memory purposes and improved optical access down to the single ion level potentially. We present on-chip light matter interfaces composed of thin film lithium niobate disk resonators implantation-doped with Ytterbium ions. Measured devices show quality factors of over 105 in disk resonators with a mode volume of about 100*(λ/n)3 and can be electrooptically controlled. We furthermore present experimental evidence of Purcell enhancement on the Yb 2F7/2-2F5/2 transition at 980 nm.