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Publication Citation: Sub-Doppler Laser Cooling and Magnetic Trapping of Erbium

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Author(s): Andrew J. Berglund; Simone Lee; Jabez J. McClelland;
Title: Sub-Doppler Laser Cooling and Magnetic Trapping of Erbium
Published: November 27, 2007
Abstract: We investigate cooling mechanisms in magneto-optically and magnetically trapped erbium. We find efficient sub-Doppler cooling in our trap, which can persist even in large magnetic fields due to the near degeneracy of two Lande g factors. Furthermore, a continuously loaded magnetic trap is demonstrated where we observe temperatures below 25 υK. These favorable cooling and trapping properties suggest a number of scientific possibilities for rare-earth-metal atomic physics, including narrow linewidth laser cooling and spectroscopy, unique collision studies, and degenerate bosonic and fermionic gases with long-range magnetic dipole coupling.
Citation: Physical Review A (Atomic, Molecular and Optical Physics)
Volume: 76
Issue: 5
Keywords: laser cooling;magnetic trapping;rare-earth elements
Research Areas: Laser Cooling
PDF version: PDF Document Click here to retrieve PDF version of paper (265KB)