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Atom traping in van der Waals potential

PRL

Atom surface trap has been proposed and experimentally implemented. Loading of atoms into a surface potential well was realized due to the loss of kinetic energy upon inelastic collision of two laser-excited atoms. This scheme was realized for Rb atoms and the surface of a YAG crystal. The dependence of the quantum adsorption rate on the laser frequency has been investigated. A possibility of fabricating microstructures and nanostructures of arbitrary shape from the trapped atoms in the surface potential is demonstrated.

References:

A. E. Afanasiev, P. N. Melentiev, and V. I. Balykin, "Atom Surface Trap Based on Laser-Induced Quantum Adsorption", Proc. SPIE Vol. 7024, 702402 (2008)
A. E. Afanasiev, P. N. Melentiev, and V. I. Balykin, "Atom Surface Trap Based on Laser-Induced Quantum Adsorption", Bulletin of the Russian Academy of Sciences: Physics, Vol. 72, No. 5, pp. 664–669 (2008)
A. E. Afanasiev, P. N. Melentiev, and V. I. Balykin, "Laser-Induced Quantum Adsorption of Atoms on a Surface", JETP Letters, Vol. 86, No. 3, pp. 172–177 (2007)

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