Broadband laser cooling of trapped atoms with ultrafast pulses

Details Broadband laser cooling of trapped atoms with ultrafast pulses Broadband laser cooling of trapped atoms with ultrafast pulses

2005-07-07

arxiv.org/abs/quant-ph/0507074v2

Physics

Quantum Physics

Scientific paper

10.1364/JOSAB.23.001170

We demonstrate broadband laser cooling of atomic ions in an rf trap using ultrafast pulses from a modelocked laser. The temperature of a single ion is measured by observing the size of a time-averaged image of the ion in the known harmonic trap potential. While the lowest observed temperature was only about 1 K, this method efficiently cools very hot atoms and can sufficiently localize trapped atoms to produce near diffraction-limited atomic images.

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