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 journalArticle

100 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
Publication statusPublished - Jan 1 1999


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

O’hara, K. M., Granade, S. R., Gehm, M. E., Savard, T. A., Bali, S., Freed, C., & Thomas, J. E. (1999). Ultrastable CO2laser trapping of lithium fermions. Physical Review Letters, 82(21), 4204-4207. https://doi.org/10.1103/PhysRevLett.82.4204