Bright Source of Cold Ions for Surface-Electrode Traps

Details Bright Source of Cold Ions for Surface-Electrode Traps Bright Source of Cold Ions for Surface-Electrode Traps

2007-02-03

arxiv.org/abs/physics/0702025v1

Physics

Atomic Physics

Paper submitted to PRL for review on 2/1/06

Scientific paper

10.1103/PhysRevA.76.041401

We produce large numbers of low-energy ions by photoionization of laser-cooled atoms inside a surface-electrode-based Paul trap. The isotope-selective trap loading rate of $4\times10^{5}$ Yb$^{+}$ ions/s exceeds that attained by photoionization (electron impact ionization) of an atomic beam by four (six) orders of magnitude. Traps as shallow as 0.13 eV are easily loaded with this technique. The ions are confined in the same spatial region as the laser-cooled atoms, which will allow the experimental investigation of interactions between cold ions and cold atoms or Bose-Einstein condensates.

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