Laser-cooled atomic ions as probes of molecular ions

Conference Paper

Trapped laser-cooled atomic ions are a new tool for understanding cold molecular ions. The atomic ions not only sympathetically cool the molecular ions to millikelvin temperatures, but the bright atomic ion fluorescence can also serve as a detector of both molecular reactions and molecular spectra. We are working towards the detection of single molecular ion spectra by sympathetic heating spectroscopy. Sympathetic heating spectroscopy uses the coupled motion of two trapped ions to measure the spectra of one ion by observing changes in the fluorescence of the other ion. Sympathetic heating spectroscopy is a generalization of quantum logic spectroscopy, but does not require ions in the motional ground state or coherent control of the ion internal states. We have recently demonstrated this technique using two isotopes of Ca + [Phys. Rev. A, 81, 043428 (2010)]. Limits of the method and potential applications for molecular spectroscopy are discussed.

Full Text

Duke Authors

Cited Authors

  • Brown, KR; Viteri, CR; Clark, CR; Goeders, JE; Khanyile, NB; Vittorini, GD

Published Date

  • January 1, 2015

Published In

Volume / Issue

  • 1642 /

Start / End Page

  • 392 - 395

Electronic International Standard Serial Number (EISSN)

  • 1551-7616

International Standard Serial Number (ISSN)

  • 0094-243X

International Standard Book Number 13 (ISBN-13)

  • 9780735412828

Digital Object Identifier (DOI)

  • 10.1063/1.4906702

Citation Source

  • Scopus