Sub-Doppler laser cooling and magnetic trapping of erbium
Atomic Physics
2009-09-29 v1 Quantum Physics
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 microkelvin. These favorable cooling and trapping properties suggest a number of scientific possibilities for rare-earth atomic physics, including narrow linewidth laser cooling and spectroscopy, unique collision studies, and degenerate bosonic and fermionic gases with long-range magnetic dipole coupling.
Keywords
Cite
@article{arxiv.0802.0836,
title = {Sub-Doppler laser cooling and magnetic trapping of erbium},
author = {Andrew J. Berglund and Siu Au Lee and Jabez J. McClelland},
journal= {arXiv preprint arXiv:0802.0836},
year = {2009}
}