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Hannover 2013 – scientific programme

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A: Fachverband Atomphysik

A 48: Ultracold atoms: Manipulation and detection (with Q)

A 48.3: Talk

Friday, March 22, 2013, 11:30–11:45, F 142

Atom lens without chromatic aberrations — •Maxim A. Efremov1, Polina V. Mironova2, and Wolfgang P. Schleich11Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQST), Universität Ulm, 89081 Ulm, Germany — 2Theoretische Quantendynamik, Institut für Angewandte Physik, Technische Universität Darmstadt, 64289 Darmstadt

We propose a lens for atoms with reduced chromatic aberrations and calculate its focal length and spot size. In our scheme a two-level atom interacts with a near-resonant standing light wave formed by two running waves of slightly different wave vectors, and a far-detuned running wave propagating perpendicular to the standing wave. We show that within the Raman-Nath approximation and for an adiabatically slow atom-light interaction, the phase acquired by the atom is independent of the incident atomic velocity.

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