Two-photon spectroscopy of singlet autoionizing levels of atomic sulfur

Journal Article · Mon Aug 01 04:00:00 EDT 1988 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.38.1270· OSTI ID:6989962

Pratt, S T

Two-photon excitation from the /sup 1/D/sub 2/ level of atomic sulfur was used to probe the previously unobserved, even-parity singlet levels in the region between the two lowest ionization thresholds. Several new Rydberg series were observed and assigned to the (/sup 2/D/sup 0/)np and (/sup 2/D/sup 0/)nf configurations. Although these levels are energetically allowed to autoionize into the /sup 4/S/sup 0/+e/sup -/ continuum, autoionization is forbidden within LS coupling, resulting in very narrow linewidths.

• Research Organization: Argonne National Laboratory, Argonne, Illinois 60439
• OSTI ID: 6989962
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 38:3; 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
ATOMS
AUTOIONIZATION
D STATES
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY LEVELS
EXCITED STATES
IONIZATION
LASER SPECTROSCOPY
NONMETALS
RYDBERG STATES
SPECTROSCOPY
SULFUR
TIME-OF-FLIGHT METHOD