Radiative lifetime measurements in TmIII with time-resolved laser spectroscopy and comparisons with HFR calculations
Författare
Summary, in English
Natural radiative lifetimes of eight levels in Tm m were measured with the time-resolved laser-induced fluorescence (LIF) technique. Free doubly ionized thulium ions were obtained in a laser-produced plasma. Three even-parity levels were excited from the ground state with one-photon excitation, using a laser system generating pulses of 1 ns duration. Five odd-parity levels were excited from the ground state with two-photon excitation, where a picosecond laser system was employed. In both cases, the lifetimes were evaluated from transient LIF signals detected with a fast-detection system. The experimental lifetime results were compared with Hartree-Fock calculations including relativistic corrections. Good agreement was achieved for the 4f(12)6p levels while larger discrepancies are noted for some 4f(12)5d levels.
Avdelning/ar
Publiceringsår
2001
Språk
Engelska
Sidor
1349-1359
Publikation/Tidskrift/Serie
Journal of Physics B: Atomic, Molecular and Optical Physics
Volym
34
Issue
8
Fulltext
- Available as PDF - 235 kB
- Download statistics
Dokumenttyp
Artikel i tidskrift
Förlag
IOP Publishing
Ämne
- Atom and Molecular Physics and Optics
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0953-4075