Sub-Doppler direct infrared laser absorption spectroscopy in fast ion beams: The fluorine hyperfine structure of HF/sup +/

Journal Article · Sat Apr 15 04:00:00 EDT 1989 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.455800· OSTI ID:6456801

Coe, J V; Owrutsky, J C; Keim, E R; Agman, N V; Hovde, D C; Saykally, R J

We report the development of a new general technique for measuring vibration--rotation spectra of molecular ions with sub-Doppler resolution and with accurate determination of the mass and number density of the carriers of all spectral features. With this method, called direct laser absorption spectroscopy in fast ion beams (DLASFIB), we have carried out the first observation of direct absorption of photons by ions in a fast ion beam. Hyperfine-resolved vibration--rotation transitions of HF/sup +/ have been measured, and along with optical combination differences and laser magnetic resonance data, have been analyzed to yield the fluorine hyperfine parameters a, b, c and d for both v = 0 and v = 1 in the X /sup 2/Pi state. Comparisons with many-body perturbation theory results are presented.

• Research Organization: Department of Chemistry, University of California, Berkeley, California 94720
• OSTI ID: 6456801
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 90:8; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640301 -- Atomic
Molecular & Chemical Physics-- Beams & their Reactions
640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION SPECTROSCOPY
BEAMS
CHARGED PARTICLES
ELEMENTS
ENERGY LEVELS
EXCITED STATES
FLUORINE
HALOGENS
HYDROFLUORIC ACID
HYDROGEN COMPOUNDS
HYPERFINE STRUCTURE
INFRARED SPECTRA
INORGANIC ACIDS
ION BEAMS
IONS
LASER SPECTROSCOPY
MOLECULAR IONS
NONMETALS
ROTATIONAL STATES
SPECTRA
SPECTROSCOPY
VIBRATIONAL STATES