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arXiv:1211.6647 · Physical Review Letters

Sympathetic Electromagnetically-Induced-Transparency Laser Cooling of Motional Modes in an Ion Chain

Yiheng Lin, John Gaebler, Ting Rei Tan, R. Bowler, John D. Jost, D. Leibfried, D. J. Wineland

Published Apr 8, 2013• 70 citations
arXivHTMLPDF

Abstract

We use electromagnetically-induced-transparency laser cooling to cool motional modes of a linear ion chain. As a demonstration, we apply electromagnetically-induced-transparency cooling on $^{24}\mathrm{Mg}^{+}$ ions to cool the axial modes of a $^{9}\mathrm{Be}^{+}\mathrm{\text{\ensuremath{-}}}^{24}\mathrm{Mg}^{+}$ ion pair and a $^{9}\mathrm{Be}^{+}\mathrm{\text{\ensuremath{-}}}^{24}\mathrm{Mg}^{+}\mathrm{\text{\ensuremath{-}}}^{24}\mathrm{Mg}^{+}\mathrm{\text{\ensuremath{-}}}^{9}\mathrm{Be}^{+}$ ion chain, thereby sympathetically cooling the $^{9}\mathrm{Be}^{+}$ ions. Compared to previous implementations of conventional Raman sideband cooling, we achieve approximately an order-of-magnitude reduction in the duration required to cool the modes to near the ground state and significant reduction in required laser intensity.

DOI
10.1103/physrevlett.110.153002

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