Continuous polarization-gradient precooling-assisted velocity-selective coherent population trapping. Academic Article uri icon


  • We show that polarization-gradient cooling occurs in the system, simultaneously with velocity-selective coherent population trapping (VSCPT). Starting with a Doppler temperature sample, this process precools atoms and contains them, to within twice the recoil velocity, a range efficiently capturable by VSCPT. For sodium, this cooling may enhance the rate of three-dimensional VSCPT by 200 times over the rate achievable from Doppler precooling alone. We estimate that in 8 msec, for example, the atoms would be cooled in three dimensions to one-fourth the recoil temperature. 1993 The American Physical Society.

published proceedings

  • Phys Rev A

author list (cited authors)

  • Shahriar, M. S., Hemmer, P. R., Prentiss, M. G., Marte, P., Mervis, J., Katz, D. P., Bigelow, N. P., & Cai, T.

citation count

  • 49

complete list of authors

  • Shahriar, MS||Hemmer, PR||Prentiss, MG||Marte, P||Mervis, J||Katz, DP||Bigelow, NP||Cai, T

publication date

  • December 1993