Ion Acoustic Waves in Ultracold Neutral Plasmas

Journal Article · Fri Aug 06 00:00:00 EDT 2010 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.105.065004· OSTI ID:21470939

Castro, J; McQuillen, P; Killian, T C ^[1]

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1. Department of Physics and Astronomy and Rice Quantum Institute, Rice University, Houston, Texas 77005 (United States)

We photoionize laser-cooled atoms with a laser beam possessing spatially periodic intensity modulations to create ultracold neutral plasmas with controlled density perturbations. Laser-induced fluorescence imaging reveals that the density perturbations oscillate in space and time, and the dispersion relation of the oscillations matches that of ion acoustic waves, which are long-wavelength, electrostatic, density waves.

• OSTI ID: 21470939
• Journal Information: Physical Review Letters, Vol. 105, Issue 6; Other Information: DOI: 10.1103/PhysRevLett.105.065004; (c) 2010 American Institute of Physics; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
COLD PLASMA
DISPERSION RELATIONS
DISTURBANCES
FLUORESCENCE
ION ACOUSTIC WAVES
LASER RADIATION
LASER-PRODUCED PLASMA
LASERS
MODULATION
PERIODICITY
PLASMA DENSITY
ELECTROMAGNETIC RADIATION
EMISSION
ION WAVES
LUMINESCENCE
PHOTON EMISSION
PLASMA
PLASMA WAVES
RADIATIONS
VARIATIONS