Laser-rf double-resonance study of N sub 2 sup +

Journal Article · Tue Oct 01 04:00:00 EDT 1991 · Physical Review A. General Physics; (United States)

DOI:https://doi.org/10.1103/PhysRevA.44.4418· OSTI ID:5045945

Mansour, N B; Kurtz, C; Steimle, T C; Goodman, G L; Young, L ^[1]; Scholl, T J; Rosner, S D; Holt, R A ^[2]

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1. Physics Division, Argonne National Laboratory, Argonne, Illinois (USA)
2. Physics Department, The University of Western Ontario, London, Ontario (Canada)

We have applied the laser-rf-laser double-resonance method to a molecular ion. Fifty-six hyperfine components of fine-structure transitions ({Delta}{ital J}={plus minus}1) were measured in rotational levels from {ital N}=1 to 27 of the {nu}{prime}{prime}=1 vibrational level of the {ital X}{sup 2} {Sigma}{sub {ital g}}{sup +} ground electronic state of {sup 14}N{sub 2}{sup +}. In order to fit the data, we required seven molecular constants, corresponding to the following interactions: electron spin-rotation fine structure and its centrifugal distortion, Fermi-contact hyperfine structure (hfs), dipolar hfs and its centrifugal distortion, and electric quadrupole and nuclear spin-rotation hfs. The results are in reasonable agreement with theoretical calculations based upon a Hartree-Fock-Roothaan wave function.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5045945
• Journal Information: Physical Review A. General Physics; (United States), Journal Name: Physical Review A. General Physics; (United States) Vol. 44:7; ISSN 1050-2947; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
CHARGED PARTICLES
DOUBLE RESONANCE METHODS
ENERGY LEVELS
EXCITED STATES
FINE STRUCTURE
GROUND STATES
HARTREE-FOCK METHOD
HYPERFINE STRUCTURE
IONS
LASER SPECTROSCOPY
MOLECULAR IONS
NITROGEN IONS
OPTICAL PUMPING
PUMPING
ROTATIONAL STATES
SPECTRA
SPECTROSCOPY
VIBRATIONAL STATES