Ion Acoustic Waves in Ultracold Neutral Plasmas
Journal Article
·
· Physical Review Letters
- 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
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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
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