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.
|Number of pages||9|
|Journal||Journal of the Optical Society of America B: Optical Physics|
|Publication status||Published - 1 Jan 1992|