Laser cooling of magnetically trapped neutral atoms

Kristian Helmerson, Alex Martin, David E. Pritchard

Research output: Contribution to journalArticleResearchpeer-review

28 Citations (Scopus)


We demonstrate laser Doppler cooling of magnetically trapped neutral atoms. Following the application of onedimensional optical molasses to a sample of magnetically trapped Na atoms, a substantial reduction has been observed in the linewidths of both laser absorption and rf resonance spectra, indicating cooling of the sample to ˜2 mK. A simple model of the one-dimensional Doppler cooling process of the atoms in the trap is presented and compared with the experimentally observed results.

Original languageEnglish
Pages (from-to)1988-1996
Number of pages9
JournalJournal of the Optical Society of America B: Optical Physics
Issue number11
Publication statusPublished - 1 Jan 1992
Externally publishedYes

Cite this