Continuous polarization-gradient precooling-assisted velocity-selective coherent population trapping

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

51 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)R4035-R4038
JournalPhysical Review A
Issue number6
StatePublished - 1993

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


Dive into the research topics of 'Continuous polarization-gradient precooling-assisted velocity-selective coherent population trapping'. Together they form a unique fingerprint.

Cite this