Ultracold neutral plasmas: Recent experiments and new prospects

Academic Article


  • Photoionizing laser-cooled atoms produces ultracold neutral plasmas with, initial temperatures of 1-1000 K and densities as high as 1010 cm-3. Applied radio frequency fields can excite plasma oscillations that are used to monitor the expansion of the unconfined plasma. Significant three-body recombination of electrons and ions into Rydberg atoms takes place during the plasma expansion. Previous experiments have been done with xenon, but a new experiment is planned with laser-cooled strontium. The strontium ion has an optically allowed transition at a convenient blue wavelength. This will allow direct imaging of the plasma through fluorescence or absorption, and may enable laser cooling and trapping of the plasma.
  • Authors

    Digital Object Identifier (doi)

    Author List

  • Killian TC; Ashoka VS; Gupta P; Laha S; Nagel SB; Simien CE; Kulin S; Rolston SL; Bergeson SD
  • Start Page

  • 6077
  • End Page

  • 6085
  • Volume

  • 36
  • Issue

  • 22 SPEC.ISS.