Abstract

A measurement of the hyperfine coefficients and isotope shifts for the atomic dysprosium 421.291 nm transition (4f¹⁰6s²,J=8-->4f¹⁰6s6p,J=9) using atomic beam laser-induced fluorescence spectroscopy is presented. A King plot analysis is performed to determine a specific mass shift of δνsms164-162=11(7) MHz for the 421 nm transition, confirming the pure 4f¹⁰6s6p configuration of the excited state. This transition is currently being explored for laser cooling of an atomic beam of dysprosium used in a search for a temporal variation of the fine-structure constant.

© 2009 Optical Society of America

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History
Original Manuscript: June 10, 2009
Manuscript Accepted: July 16, 2009
Revised Manuscript: July 3, 2009
Published: August 18, 2009

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Author Affiliations

Nathan Leefer, Arman Cingöz, Dmitry Budker

University of California at Berkeley

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