SAMOP 2021 – scientific programme

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A: Fachverband Atomphysik

A 13: Quantum Gases and Matter Waves (joint session Q/A)

A 13.3: Poster

Tuesday, September 21, 2021, 16:30–18:30, P

Optical Potentials based on Conical Refraction for Bose-Einstein Condensates — •Dominik Pfeiffer, Ludwig Lind, and Gerhard Birkl — Institut für Angewandte Physik, TU Darmstadt, Schlossgartenstraße 7, 64289 Darmstadt, Germany

Optical trapping and guiding potentials based on conical refraction (CR) in a biaxial crystal present a versatile tool for the manipulation of atomic matter waves in atomtronics circuits. Based on the specific properties of CR, we generate a three-dimensional dark focus optical trapping potential for ultra-cold atoms and Bose-Einstein condensates. This ’optical bottle’ is created by a single blue-detuned laser beam and gives full 3D confinement of cold atoms. We present the experimental implementation and give a detailed analysis of the trapping properties.