Determination of Radiative Lifetimes In Neutral Arsenic Using Time-resolved Laser Spectroscopy In the Vuv Region
Författare
Summary, in English
Inspired by the recent Hubble Space Telescope first observations of arsenic in an astrophysical object we have determined the natural radiative lifetime of the upper states of two of the three resonance lines of As I. Short pulse laser excitation at 193.7 and 197.2 nm was achieved using different non-linear optical mixing schemes. Using time-resolved spectroscopy we obtain tau(4p(2)5s P-4(3/2))=4.3(5) ns and T(4p(2)5s P-4(1/2)=4.5(5)ns yielding the absorption oscillator strengths f(abs)(193.7 nm) =0.123 (17) and f(abs)(1 97.2 nm)=0.059(8).
Avdelning/ar
Publiceringsår
1992
Språk
Engelska
Sidor
440-442
Publikation/Tidskrift/Serie
Astronomy & Astrophysics
Volym
263
Issue
1-2
Fulltext
- Available as PDF - 67 kB
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Länkar
Dokumenttyp
Artikel i tidskrift
Förlag
EDP Sciences
Ämne
- Atom and Molecular Physics and Optics
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0004-6361