Laser collimation of a chromium beam

  title={Laser collimation of a chromium beam},
  author={Robert E. Scholten and Ranjan Gupta and Jabez J McClelland and Robert J. Celotta},
We have studied laser collimation of a chromium atomic beam using a transverse polarization gradient cooling scheme. We present detailed measurements of the angular distribution of atoms on the beam axis, over a broad range of laser intensities and detunings including those which produce significant excitation, and observe collimation angles as small as 0.16 ± 0.01 mrad (50% quantile). We compare our results with existing calculations based on assumptions of steady-state conditions and low… CONTINUE READING


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