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Laser-generated waves and wakes in rotating ion crystals
Authors:Kriesel J M  Bollinger J J  Mitchell T B  King L B  Dubin D H E
Institution:Time & Frequency Division, National Institute of Standards & Technology, Boulder, Colorado 80305, USA.
Abstract:Locally excited plasma waves are generated in a Coulomb crystal by "pushing" with radiation pressure on a rotating cloud of laser-cooled 9Be+ ions. The waves form a stationary wake that is directly imaged through the dependence of the ion fluorescence on Doppler shifts, and theoretical calculations in a slab geometry are shown to accurately reproduce these images. The technique demonstrates a new method of exciting and studying waves in cold ion clouds.
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