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Optica Publishing Group
  • International Conference on Quantum Electronics
  • OSA Technical Digest (Optica Publishing Group, 1988),
  • paper WI2

ASSOCIATIVE IONIZATION EXPERIMENTS USING ULTRA-COLD LASER-TRAPPED SODIUM

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Abstract

We have measured the cross section for associative ionization in ultra-cold laser-trapped sodium atoms. The measured rate coefficient for the process at a temperature of (0.75 ± 0.25) mK is (1.1+1.30.5)×1011 cm3 s−1, which implies a cross section of 8.6 × 10−14 cm2.[1] In contrast, the cross section at a velocity corresponding to an energy of 20 Κ has been measured [2] to be about 10−16 cm2 and is decreasing with decreasing temperature.

© 1988 Optical Society of America

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