Detection of single-ion spectra by Coulomb-crystal heating

Journal Article

The coupled motion of ions in a radiofrequency trap has been used to connect the frequency-dependent laser-induced heating of a sympathetically cooled spectroscopy ion with changes in the fluorescence of a laser-cooled control ion. This technique, sympathetic heating spectroscopy, is demonstrated using two isotopes of calcium. In the experiment, a few scattered photons from the spectroscopy ion are transformed into a large deviation from the steady-state fluorescence of the control ion. This allows us to detect an optical transition where the number of scattered photons is below our fluorescence detection limit. Possible applications of the technique to molecular ion spectroscopy are briefly discussed. © 2010 The American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Clark, CR; Goeders, JE; Dodia, YK; Viteri, CR; Brown, KR

Published Date

  • April 29, 2010

Published In

Volume / Issue

  • 81 / 4

Electronic International Standard Serial Number (EISSN)

  • 1094-1622

International Standard Serial Number (ISSN)

  • 1050-2947

Digital Object Identifier (DOI)

  • 10.1103/PhysRevA.81.043428

Citation Source

  • Scopus