Sub-Doppler Laser Cooling and Magnetic Trapping of Erbium
Andrew J. Berglund, Simone Lee, Jabez J. McClelland
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.
Physical Review A (Atomic, Molecular and Optical Physics)
laser cooling, magnetic trapping, rare-earth elements
, Lee, S.
and McClelland, J.
Sub-Doppler Laser Cooling and Magnetic Trapping of Erbium, Physical Review A (Atomic, Molecular and Optical Physics), [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=620010
(Accessed December 1, 2023)