Radiative lifetimes of even- and odd-parity levels in Sc I and Sc II

Radiative lifetimes of even- and odd-parity levels in Sc I and Sc II

Time-resolved laser-induced fluorescence on atomic and ionic beams is used to measure radiative lifetimes for 77 odd- and even-parity levels of Sc I and Sc II. Time-of-flight selection of slow Sc atoms is demonstrated to minimize error in long lifetimes, an error that arises because escape from the...

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Veröffentlicht in:J. Opt. Soc. Am. B: Opt. Phys.; (United States) 1988-03, Vol.5 (3), p.606-613
Hauptverfasser: MARSDEN, G. C, DEN HARTOG, E. A, LAWLER, J. E, DAKIN, J. T, ROBERTS, V. D
Format: Artikel
Sprache:eng
Schlagworte:
640302 - Atomic, Molecular & Chemical Physics- Atomic & Molecular Properties & Theory
ATOMIC AND MOLECULAR PHYSICS
Atomic properties and interactions with photons
CHARGED PARTICLES
ENERGY-LEVEL TRANSITIONS
Exact sciences and technology
Intensities and shapes of atomic spectral lines
IONS
LASER SPECTROSCOPY
LEVEL WIDTHS
LIFETIME
PARITY
PARTICLE PROPERTIES
Physics
SCANDIUM IONS
SPECTRA
SPECTROSCOPY
VISIBLE SPECTRA
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Zusammenfassung:Time-resolved laser-induced fluorescence on atomic and ionic beams is used to measure radiative lifetimes for 77 odd- and even-parity levels of Sc I and Sc II. Time-of-flight selection of slow Sc atoms is demonstrated to minimize error in long lifetimes, an error that arises because escape from the observing region before radiating. High-lying even-parity levels in Sc I and Sc II are excited by using two-step laser excitation.
ISSN:0740-3224
1520-8540
DOI:10.1364/JOSAB.5.000606