p-wave photodetachment in a static electric field

N. D. Gibson, B. J. Davies, Daniel John Larson

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

Photodetachment from negative ions initially bound in s states has been studied in a static electric field. A 10-keV ion beam was sent through a region with fields of up to 1.5 kV/cm applied parallel to the beam direction. A pulsed dye-laser beam, perpendicular to the ion beam, photodetached the ions. The relative cross sections were measured by detecting the resulting fast neutral atoms with a gated channeltron detector. Polarization-dependent electric-field oscillations were oberved on the p-wave detachment cross section of Au- near the threshold at 18 620.2 cm-1. A simple theory for calculating the oscillatory structure is presented. Good agreement is found between the data and the theory, for laser polarizations both parallel to and perpendicular to the static electric field.

Original languageEnglish (US)
Pages (from-to)310-320
Number of pages11
JournalPhysical Review A
Volume48
Issue number1
DOIs
StatePublished - Jan 1 1993

Fingerprint

photodetachment
electric fields
ion beams
cross sections
polarization
neutral atoms
detachment
dye lasers
negative ions
pulsed lasers
laser beams
oscillations
thresholds
detectors
lasers
ions

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Gibson, N. D. ; Davies, B. J. ; Larson, Daniel John. / p-wave photodetachment in a static electric field. In: Physical Review A. 1993 ; Vol. 48, No. 1. pp. 310-320.
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p-wave photodetachment in a static electric field. / Gibson, N. D.; Davies, B. J.; Larson, Daniel John.

In: Physical Review A, Vol. 48, No. 1, 01.01.1993, p. 310-320.

Research output: Contribution to journalArticle

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