Laser-induced charging of microfabricated ion traps

  title={Laser-induced charging of microfabricated ion traps},
  author={Shannon X. Wang and Guang Hao Low and Nathan S. Lachenmyer and Yufei Ge and Peter F. Herskind and Isaac L. Chuang},
  journal={Journal of Applied Physics},
Electrical charging of metal surfaces due to photoelectric generation of carriers is of concern in trapped ion quantum computation systems, due to the high sensitivity of the ions’ motional quantum states to deformation of the trapping potential. The charging induced by typical laser frequencies involved in Doppler cooling and quantum control is studied here, with microfabricated surface-electrode traps made of aluminum, copper, and gold, operated at 6 K with a single Sr+ ion trapped 100 μm… 

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