Ultrastable CO2 laser trapping of lithium fermions

  • O'Hara K
  • Granade S
  • Gehm M
 et al. 
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We demonstrate an ultrastable CO2 laser trap that provides tight confinement of neutral atoms with negligible optical scattering and minimal laser-noise-induced heating. Using this method, fermionic Li-6 atoms are stored in a 0.4 mK deep well with a Ile trap lifetime of 300 sec, consistent with a background pressure of 10(-11) Torr. To our knowledge, this is the longest storage time ever achieved with an all-optical trap, comparable to the best reported magnetic traps. [S0031- 9007(99)09193-0].

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  • Optical dipole trap atoms li-6 collisions

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  • K M O'Hara

  • S R Granade

  • M E Gehm

  • T A Savard

  • S Bali

  • C Freed

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