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Thomas Pohl

Experimental realization of an exact solution to the vlasov equations for an expanding plasma

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  • S. Laha
  • ,
  • P Gupta
  • ,
  • C. E. Simien
  • ,
  • H. Gao
  • ,
  • J. A. Castro
  • ,
  • T. Pohl
  • T. C. Killian

We study the expansion of ultracold neutral plasmas in the regime in which inelastic collisions are negligible. The plasma expands due to the thermal pressure of the electrons, and for an initial spherically symmetric Gaussian density profile, the expansion is self-similar. Measurements of the plasma size and ion kinetic energy using fluorescence imaging and spectroscopy show that the expansion follows an analytic solution of the Vlasov equations for an adiabatically expanding plasma.

Original languageEnglish
Article number155001
JournalPhysical Review Letters
Volume99
Issue15
Number of pages4
ISSN0031-9007
DOIs
Publication statusPublished - 12 Oct 2007

    Research areas

  • NEUTRAL PLASMA, EXPANSION, LASER, VACUUM, SOLIDS, BUNCH, ION

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