Dissociation and ionization of vibrationally autoionizing Rydberg states of H[sub 2] in a static electric field

Journal Article · Sun Aug 15 04:00:00 EDT 1993 · Journal of Chemical Physics; (United States)

DOI:https://doi.org/10.1063/1.465249· OSTI ID:5406941

Glab, W L; Qin, K ^[1]

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1. Department of Physics, Texas Tech University, P.O. Box 41051, Lubbock, Texas 79409 (United States)

We have studied the spectroscopic and dynamic properties of several autoionizing Rydberg states of molecular hydrogen which converge to the vibrationally excited [ital v][sup +]=1 state of the ion, in the presence of a static electric field. Using the techniques of multiphoton ionization and time-of-flight mass spectrometry, we are able to separately observe the yield of dissociation and ionization after excitation of resolved Stark components of the Rydberg states. The energies of the Stark components can be modeled accurately by an energy matrix diagonalization calculation, when rotational interactions between states converging to different ion rotational states are taken into account. The dynamics of the different states in the Stark manifolds can be partly explained by assuming that they are governing by [ital l] mixing of predominantly predissociative [ital s] and [ital d] states and a dominantly autoionizing [ital p] state.

• OSTI ID: 5406941
• Journal Information: Journal of Chemical Physics; (United States), Journal Name: Journal of Chemical Physics; (United States) Vol. 99:4; ISSN JCPSA6; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

664200* -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
AUTOIONIZATION
CHARGED PARTICLES
COUPLING
D STATES
DC SYSTEMS
DISSOCIATION
ELECTRIC FIELDS
ELEMENTS
ENERGY LEVELS
ENERGY SYSTEMS
EXCITED STATES
HYDROGEN
HYDROGEN IONS
IONIZATION
IONS
MASS SPECTROSCOPY
MATRICES
MULTI-PHOTON PROCESSES
NONMETALS
P STATES
POWER SYSTEMS
PREDISSOCIATION
ROTATIONAL STATES
RYDBERG STATES
S STATES
SPECTROSCOPY
STARK EFFECT
TIME-OF-FLIGHT METHOD
VIBRATIONAL STATES