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OBSERVATION OF THE STARK-EFFECT IN AUTOIONIZING RYDBERG STATES OF MOLECULAR-HYDROGEN

FIELDING, HH; SOFTLEY, TP; (1991) OBSERVATION OF THE STARK-EFFECT IN AUTOIONIZING RYDBERG STATES OF MOLECULAR-HYDROGEN. CHEM PHYS LETT , 185 (3-4) 199 - 205.

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Abstract

The dc Stark effect is studied for autoionising Rydbery states of H2 converging on the upsilon = 2 ionisation limit. The levels (n = 13-22) are excited from the ground state using a coherent XUV source (bandwidth almost-equal-to 1 cm-1) and are strongly perturbed by the field (15-2000 V/cm). Many new states are observed, including the high-l hydrogenic manifolds. A detailed Stark map is obtained for the first time, and a matrix diagonalisation calculation of field-induced state mixing is carried out to explain some of the observed features.

Type:Article
Title:OBSERVATION OF THE STARK-EFFECT IN AUTOIONIZING RYDBERG STATES OF MOLECULAR-HYDROGEN
Keywords:QUANTUM-DEFECT-THEORY, ELECTRIC-FIELD, IONIZATION, H-2, THRESHOLD, PHOTOIONIZATION, AUTOIONIZATION, LI-2, H2
UCL classification:UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Chemistry

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