IONIZING COLLISIONS BETWEEN 2 LASER-EXCITED ATOMS - SEPARATION OF PENNING AND PHOTOIONIZATION BY HIGH-RESOLUTION ELECTRON SPECTROMETRY

Authors
DENGEL H RUF MW HOTOP H
Citation
H. Dengel et al., IONIZING COLLISIONS BETWEEN 2 LASER-EXCITED ATOMS - SEPARATION OF PENNING AND PHOTOIONIZATION BY HIGH-RESOLUTION ELECTRON SPECTROMETRY, Europhysics letters, 23(8), 1993, pp. 567-572
Citations number
35
Categorie Soggetti
Physics
Journal title
Europhysics letters → ACNP
ISSN journal
02955075
Volume
23
Issue
8
Year of publication
1993
Pages
567 - 572
Database
ISI
SICI code
0295-5075(1993)23:8<567:ICB2LA>2.0.ZU;2-1
Abstract
Using transverse laser excitation of a single collimated atomic sodium beam in combination with an efficient electron spectrometer, we have studied collisional (= Penning) and photoionization processes involvin g the laser-excited Na(3p3/2) and Na(3d5/2) atoms. As a result of our high electron energy resolution (6 meV) we have for the first time bee n able to measure the polarization-dependent lineshapes of the Penning electron spectra for collisions between two laser-excited atoms and t o reliably separate overlapping contributions due to Penning and photo ionization.