Buffer-Gas Loading and Magnetic Trapping of Atomic Europium
| Autor: | Jinha Kim, John M. Doyle, Jonathan D. Weinstein, Robert deCarvalho, D. P. Katz, David Patterson, Bretislav Friedrich |
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| Rok vydání: | 1997 |
| Předmět: | |
| Zdroj: | Physical Review Letters. 78:3665-3668 |
| ISSN: | 1079-7114 0031-9007 |
| DOI: | 10.1103/physrevlett.78.3665 |
| Popis: | Atomic europium has been magnetically trapped using buffer-gas loading. Laser ablated $\mathrm{Eu}(^{8}S_{7/2})$ atoms are thermalized to 800 mK in a ${}^{4}\mathrm{He}$ buffer gas (to 250 mK in a ${}^{3}\mathrm{He}$ buffer gas). Anti-Helmholtz superconducting coils produce a quadrupole magnetic field to trap the ${M}_{J}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}7/2$ state of Eu. Detection is via absorption spectroscopy at 462.7 nm. Up to $1\ifmmode\times\else\texttimes\fi{}{10}^{12}\mathrm{Eu}$ atoms are loaded at a central density of $5\ifmmode\times\else\texttimes\fi{}{10}^{12}\phantom{\rule{0ex}{0ex}}{\mathrm{cm}}^{\ensuremath{-}3}$. Atoms can be held for longer than 100 s. |
| Databáze: | OpenAIRE |
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