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Light-shift Tomography in an Optical-dipole Trap for Neutral Atoms by Brantut, Jean-Philippe; Clément, Jean-François; Vincent, Martin Robert De Saint; Varoquaux, Gael; Nyman, Robert A.; Aspect, Alain; Bourdel, Thomas; Bouyer, Philippe is a scholarly article available to read on EtoBox.

What is Light-shift Tomography in an Optical-dipole Trap for Neutral Atoms about?

We report on light-shift tomography of a cloud of 87 Rb atoms in a far-detuned optical-dipole trap at 1565 nm. Our method is based on standard absorption imaging, but takes advantage of the strong light-shift of the excited state of the imaging transition, which is due to a quasi-resonance of the trapping laser with a higher excited level. We use this method to (i) map the equipotentials of a crossed optical-dipole trap, and (ii) study the thermalisation of an atomic cloud by following the evolution of the potential-energy of atoms during the free-evaporation process.

Author

Brantut, Jean-Philippe; Clément, Jean-François; Vincent, Martin Robert De Saint; Varoquaux, Gael; Nyman, Robert A.; Aspect, Alain; Bourdel, Thomas; Bouyer, Philippe

Published

2008

Language

EN