Ultrastable CO2laser trapping of lithium fermions

K. M. O’hara, S. R. Granade, M. E. Gehm, T. A. Savard, S. Bali, C. Freed, J. E. Thomas

Research output: Contribution to journalArticlepeer-review

105 Scopus citations


We demonstrate an ultrastable CO2laser trap that provides tight confinement of neutral atoms with negligible optical scattering and minimal laser-noise-induced heating. Using this method, fermionic6Li atoms are stored in a 0.4 mK deep well with a 1/e trap lifetime of 300 sec, consistent with a background pressure of 10-11Torr. To our knowledge, this is the longest storage time ever achieved with an all-optical trap, comparable to the best reported magnetic traps.

Original languageEnglish (US)
Pages (from-to)4204-4207
Number of pages4
JournalPhysical review letters
Issue number21
StatePublished - 1999

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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