| Issue |
J. Phys. II France
Volume 2, Number 4, April 1992
|
|
|---|---|---|
| Page(s) | 773 - 779 | |
| DOI | https://doi.org/10.1051/jp2:1992165 | |
J. Phys. II France 2 (1992) 773-779
Radiative-lifetime and Landé-factor measurements of the Se I 4p 35s 5S 2 level using pulsed laser spectroscopy
G. J. Bengtsson, U. Berzinsh, J. Larsson, S. Svanberg and R. ZerneDepartment of Physics, Lund Institute of Technology, P.O. Box 118, S-221 00 Lund, Sweden
(Received 21 October 1991, accepted 30 January 1992)
Abstract
First laser spectroscopic investigations on atomic selenium are reported. Natural selenium was thermally dissociated in a
quartz resonance cell keeping the background pressure of abundant selenium molecules low by differential heating. The 4p
35s
5S
2 level was excited by frequency-tripled pulsed-dye laser radiation at 207 nm. From time-resolved recordings of the fluorescence
decay at 216 nm a natural radiative lifetime of 493(15) ns was determined, while quantum-beat and optical double-resonance
measurements in an external magnetic field yielded
for the Landé factor. The results are compared with previous theoretical and experimental data.
32.70F - 32.70C - 42.60F
© Les Editions de Physique 1992