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Creation of an Ultracold Neutral Plasma



T C. Killian, S Kulin, S D. Bergeson, Luis A. Orozco, C R. Orzel, S L. Rolston


We report the creation of an ultracold neutral plasma by photoionization of laser-cooled xenon atoms. The charge carrier density is as high as 2 x 109 cm-3, and the temperatures of electrons and ions are as low as 100 mK and10 K, respectively. Plasma behavior is evident in the trapping of electrons by the positive ion cloud when the Debye screening length becomes smaller than the size of the sample. The parameters of the plasma can be such that both electrons and ions are strongly coupled.
Physical Review Letters
No. 23


laser cooling, neutral plasma, strongly coupled plasma, ultracold plasma


Killian, T. , Kulin, S. , Bergeson, S. , Orozco, L. , Orzel, C. and Rolston, S. (1999), Creation of an Ultracold Neutral Plasma, Physical Review Letters (Accessed May 28, 2024)


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Created December 1, 1999, Updated February 17, 2017