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Frankfurt 2006 – wissenschaftliches Programm

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Q: Quantenoptik und Photonik

Q 31: Poster Fallen und Kühlung

Q 31.3: Poster

Dienstag, 14. März 2006, 16:30–18:30, Labsaal

Atom guiding in photonic bandgap fibres — •Stefan Vorrath, Peter Moraczewski, Sören Götze, Kai Bongs, and Klaus Sengstock — Universität Hamburg - Institut für Laserphysik, Luruper Chaussee 149, 22761 Hamburg, Germany

Homogeneous, flexible, undisturbed, coherent waveguides for atomic matter waves would be an outstanding basis for experiments in quantum and atom optics. No-dqConventionalNo-dq capillary guides demonstrated the feasibility of this goal but light losses and speckle patterns were major obstacles preventing the break through of these concepts. In this project we investigate a new kind of atomic waveguide based on a 2D photonic bandgap fibre which promises to solve these problems as now nearly lossless guiding of light and atoms in the central core of the fibre should be possible. One further option of this setup is the possibility of additional laser cooling perpendicular to the fibre guide offering thereby atom laser applications. We discuss the light field distribution within the photonic bandgap fibre identifying single mode operation as well as simulation of atomic guiding within these modes. We will further report on the current status of the experiment and discuss possible applications.

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