Compact two-dimensional magneto-optical trap as a source for cold strontium atoms. Nosske, I., Couturier, L., Hu, F., Tan, C., Qiao, C., Blume, J., Jiang, Y. H., Chen, P., & Weidemüller, M. eprint, 9, 2017.
Compact two-dimensional magneto-optical trap as a source for cold strontium atoms [link]Paper  abstract   bibtex   
We report on the realization of a transversely loaded two-dimensional magneto-optical trap serving as a source for cold strontium atoms. We analyze the dependence of the source's properties on various parameters, in particular the intensity of a pushing beam accelerating the atoms out of the source. An atomic flux exceeding $10^9~\mathrm{atoms/s}$ at a rather moderate oven temperature of $500~^i̧rc\mathrm{C}$ is achieved. The longitudinal velocity of the atomic beam can be tuned over several tens of m/s by adjusting the power of the pushing laser beam. The beam divergence is around $60$ mrad, determined by the transverse velocity distribution of the cold atoms. The slow atom source is used to load a three-dimensional magneto-optical trap realizing loading rates up to $10^9~\mathrm{atoms/s}$ without indication of saturation of the loading rate for increasing oven temperature. The compact setup avoids undesired effects found in alternative sources like, e.g., Zeeman slowers, such as vacuum contamination and black-body radiation due to the hot strontium oven.
@article{Nosske-2017-ID264,
  title     = {Compact two-dimensional magneto-optical trap as a source for cold  
               strontium atoms},
  abstract  = {We report on the realization of a transversely loaded two-dimensional
               magneto-optical trap serving as a source for cold strontium atoms. We
               analyze the dependence of the source's properties on various parameters, in
               particular the intensity of a pushing beam accelerating the atoms out of
               the source. An atomic flux exceeding $10^9~\mathrm{atoms/s}$ at a rather
               moderate oven temperature of $500~^\circ\mathrm{C}$ is achieved. The
               longitudinal velocity of the atomic beam can be tuned over several tens of
               m/s by adjusting the power of the pushing laser beam. The beam divergence
               is around $60$ mrad, determined by the transverse velocity distribution of
               the cold atoms. The slow atom source is used to load a three-dimensional
               magneto-optical trap realizing loading rates up to $10^9~\mathrm{atoms/s}$
               without indication of saturation of the loading rate for increasing oven
               temperature. The compact setup avoids undesired effects found in
               alternative sources like, e.g., Zeeman slowers, such as vacuum
               contamination and black-body radiation due to the hot strontium oven.},
  author    = {Nosske, Ingo and Couturier, Luc and Hu, Fachao and Tan, Canzhu and Qiao,
               Chang and Blume, Jan and Jiang, Y. H. and Chen, Peng and Weidemüller,
               Matthias},
  journal   = {eprint},
  year      = {2017},
  month     = {9},
  url       = {http://arxiv.org/abs/1709.00790v1},
  arxiv     = {1709.00790v1},
  custom-1  = {abraka},
  keywords  = {physics.atom-ph},
  file      = {FULLTEXT:pdfs/000/000/000000264.pdf:PDF}
}
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