Laser-generated waves and wakes in rotating ion crystals.
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.
Kriesel
J M
JM
Time & Frequency Division, National Institute of Standards & Technology, Boulder, Colorado 80305, USA.
Bollinger
J J
JJ
Mitchell
T B
TB
King
L B
LB
Dubin
D H E
DH