News and Views
Nature Photonics 3, 557 - 558 (2009)
doi:10.1038/nphoton.2009.182
Metrology: Lattice clocks embrace ytterbium
Helen S. Margolis1
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Helen S. Margolis is at the National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK.
e-mail: helen.margolis@npl.co.uk
Abstract
Accurate frequency measurements of a narrow optical clock transition in 171Yb atoms trapped in an optical lattice establish this system as a serious contender in the quest to develop increasingly accurate atomic clocks.
