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arXiv · 1207.1131

Fast compression of a cold atomic cloud using a blue detuned crossed dipole trap

Tom Bienaime·Giovanni Barontini·Laure Mercier de Lepinay·Louis Bellando·Julien Chabe·Robin Kaiser
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Abstract

We present the experimental realization of a compressible blue detuned crossed dipole trap for cold atoms allowing for fast dynamical compression (~ 5 - 10 ms) of 5x10^7 Rubidium atoms up to densities of ~ 10^13 cm^-3. The dipole trap consists of two intersecting tubes of blue-detuned laser light. These tubes are formed using a single, rapidly rotating laser beam which, for sufficiently fast rotation frequencies, can be accurately described by a quasi-static potential. The atomic cloud is compressed by dynamically reducing the trap volume leading to densities close to the Ioffe-Reggel criterion for light localization.

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Tom Bienaime, Giovanni Barontini, Laure Mercier de Lepinay, Louis Bellando, Julien Chabe, Robin Kaiser. 2012-10-11. Fast compression of a cold atomic cloud using a blue detuned crossed dipole trap. https://doi.org/10.1103/physreva.86.053412

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