Stuttgart 2012 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 54: Poster 3
Q 54.56: Poster
Donnerstag, 15. März 2012, 16:30–19:00, Poster.I+II
Coupling color centers in diamond to optical fiber microcavities — Hanno Kaupp1,2, Matthias Mader1,2, •Louis Costa1,2, Christian Deutsch3, Jakob Reichel3, Theodor W. Hänsch1,2, and David Hunger1,2 — 1Ludwig-Maximilians-Universität München, Deutschland — 2Max-Planck-Institut für Quantenoptik, Garching, Deutschland — 3Laboratoire Kastler Brossel, E.N.S., Paris, Frankreich
Optical fibers with machined and coated end facets can serve as high reflectivity mirrors to build low loss optical resonators with free space access [1]. These microcavities feature a very small mode volume on the order of a few tens of cubic wavelengths and a very large Finesse of up to 105, corresponding to quality factors of several millions. Thus, the Purcell factor, being proportional to the ratio of quality factor and mode volume, can be as high as 103, which can dramatically enhance the emission rate of an emitter inside the cavity.
We want to use the microcavities to couple solid state based emitters such as color centers in diamond to the cavity mode and raise the emission efficiency. First steps towards studying the interaction with nitrogen-vacancy centers in diamond will be presented.
[1] D. Hunger, New Journal of Physics 12, 065038 (2010)