An ultracold neutral plasma
We present the first experiment to observe an ultracold neutral plasma. The plasma, which was created by photoionization of laser cooled atoms, has charge densities as high as 2x10{sup 9} cm{sup -3}, and the temperatures of electrons and ions are as low as 100 mK and 10 {mu}K, respectively. The plas...
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| creator | Kulin, Simone Killian, Thomas C. Orzel, Chad Rolston, Steven L. Bergeson, Scott D. Orozco, Luis A. |
| description | We present the first experiment to observe an ultracold neutral plasma. The plasma, which was created by photoionization of laser cooled atoms, has charge densities as high as 2x10{sup 9} cm{sup -3}, and the temperatures of electrons and ions are as low as 100 mK and 10 {mu}K, respectively. The plasma has a lifetime of about 100 {mu}s, much longer than predicted by recombination rates. When the laser that excites the atoms is tuned below the ionization limit we create a sample of very highly excited cold Rydberg atoms. At our highest densities and during a time of a few microseconds, in which the Rydberg atoms are essentially stationary, the ensemble evolves towards an unbound plasma-like state. |
| doi_str_mv | 10.1063/1.1302136 |
| format | Conference Proceeding |
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The plasma, which was created by photoionization of laser cooled atoms, has charge densities as high as 2x10{sup 9} cm{sup -3}, and the temperatures of electrons and ions are as low as 100 mK and 10 {mu}K, respectively. The plasma has a lifetime of about 100 {mu}s, much longer than predicted by recombination rates. When the laser that excites the atoms is tuned below the ionization limit we create a sample of very highly excited cold Rydberg atoms. 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The plasma, which was created by photoionization of laser cooled atoms, has charge densities as high as 2x10{sup 9} cm{sup -3}, and the temperatures of electrons and ions are as low as 100 mK and 10 {mu}K, respectively. The plasma has a lifetime of about 100 {mu}s, much longer than predicted by recombination rates. When the laser that excites the atoms is tuned below the ionization limit we create a sample of very highly excited cold Rydberg atoms. 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| fulltext | fulltext |
| identifier | ISSN: 0094-243X |
| ispartof | AIP conference proceedings, 1999, Vol.498 (1) |
| issn | 0094-243X 1551-7616 |
| language | eng |
| recordid | cdi_osti_scitechconnect_21210373 |
| source | AIP Journals Complete |
| subjects | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY ATOMS CHARGE DENSITY COOLING ELECTRON TEMPERATURE ELECTRONS ION TEMPERATURE LASER RADIATION LIFETIME PHOTOIONIZATION PLASMA PLASMA PRODUCTION RECOMBINATION RYDBERG STATES XENON IONS |
| title | An ultracold neutral plasma |
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