title: Identifying single molecular ions by resolved sideband measurements.
abstract: The masses of single molecular ions are nondestructively measured by cotrapping the ion of interest with a laser-cooled atomic ion, (40)Ca(+). Measurement of the resolved sidebands of a dipole forbidden transition on the atomic ion reveals the normal-mode frequencies of the two ion system. The mass of two molecular ions, (40)CaH(+) and (40)Ca(16)O(+), are then determined from the normal-mode frequencies. Isotopes of Ca(+) are used to determine the effects of stray electric fields on the normal mode measurement. The future use of resolved sideband experiments for molecular spectroscopy is also discussed.
authors.affiliation: Schools of Chemistry and Biochemistry; Computational Science and Engineering; and Physics, Georgia Institute of Technology , Atlanta, Georgia 30332, United States.
authors.forename: James E
authors.initials: JE
authors.lastname: Goeders
authors.forename: Craig R
authors.initials: CR
authors.lastname: Clark
authors.forename: Grahame
authors.initials: G
authors.lastname: Vittorini
authors.forename: Kenneth
authors.initials: K
authors.lastname: Wright
authors.forename: C Ricardo
authors.initials: CR
authors.lastname: Viteri
authors.forename: Kenneth R
authors.initials: KR
authors.lastname: Brown