Stark effect in triatomic hydrogen Rydberg states

Journal Article · Wed Jan 01 04:00:00 EST 1992 · Physical Review A. General Physics; (United States)

DOI:https://doi.org/10.1103/PhysRevA.45.387· OSTI ID:5105277

Bordas, C; Helm, H ^[1]

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1. Molecular Physics Laboratory, SRI International, 333 Ravenswood Avenue, Menlo Park, California 94025 (United States)

The influence of an external electric field on the Rydberg states of triatomic hydrogen has been studied from the viewpoint of the structure of the spectra and the dynamics of the excited states. Rydberg states with principal quantum numbers ranging from 30 to 125 were observed, and low-field as well as very-strong-field regimes investigated. A perturbative treatment taking into account the coupling between the core rotation and the Rydberg-electron motion was developed. The good knowledge of the low-{ital l} Rydberg series in H{sub 3} ({ital ns}, {ital np}, {ital nd}, and {ital nf}) allowed us to achieve this treatment without adjustable parameters. The agreement between calculation and experimental results is excellent and reveals features resulting from predissociation of selected members of the Stark manifold. Accidental predissociations due to vibrationally excited interlopers are clearly distinguished from the systematic predissociation induced by the mixing with the {ital ns} Rydberg series. This is a complete perturbative treatment of the Stark effect in molecular Rydberg states.

• OSTI ID: 5105277
• Journal Information: Physical Review A. General Physics; (United States), Journal Name: Physical Review A. General Physics; (United States) Vol. 45:1; ISSN 1050-2947; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

664200* -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
COUPLING
DISSOCIATION
DYNAMICS
ELECTRIC FIELDS
ENERGY LEVELS
ENERGY SPECTRA
EXCITED STATES
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
MANY-BODY PROBLEM
MECHANICS
NUCLEI
ODD-EVEN NUCLEI
PERTURBATION THEORY
PREDISSOCIATION
RADIOISOTOPES
RYDBERG STATES
SPECTRA
STARK EFFECT
THREE-BODY PROBLEM
TRITIUM
YEARS LIVING RADIOISOTOPES