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Hannover 2013 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 43: Poster II

Q 43.55: Poster

Wednesday, March 20, 2013, 16:00–18:30, Empore Lichthof

Fiber Fabry-Perot Cavities for CQED using Rb atoms — •Jose C. Gallego, Sutapa Ghosh, Miguel Martinez-Dorantes, Natalie Thau, Wolfgang Alt, Marcel Spurny, and Dieter Meschede — Institut für Angewandte Physik, Universität Bonn, Wegelerstraße 8, 53115 Bonn

CQED experiments rely on the coherent coupling of single or multiple atoms with an optical field inside a resonator. Recently a novel type of fiber-based cavities was presented, where the facet of optical fibers is machined with a CO2-laser and coated with a dielectric to act as concave mirrors [1]. This kind of cavity provides much smaller mode waists (in the order of 5µ m) and thus stronger atomic coupling (g/κ=20) as compared to conventional Fabry-Perot cavities. Here we present our first results on the fabrication and characterization of these cavities using our CO2-laser setup.

[1] D Hunger et al 2010 New J. Phys 12 065038.

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