Eur. Phys. J. D 23, 323-326 (2003)
https://doi.org/10.1140/epjd/e2003-00055-3

Lifetime measurements in Tm I, Tm II, and Tm III by time-resolved laser spectroscopy

¹ Department of Physics, Lund Institute of Technology, P.O. Box 118, 221 00 Lund, Sweden
² Department of Physics, Jilin University, Changchun 130023, P.R. China

Corresponding author: ^a huailiang.xu@fysik.lth.se

Received: 20 August 2002
Revised: 7 January 2003
Published online: 4 March 2003

Abstract

Natural radiative lifetimes of eight levels in Tm I ( and configurations), two levels in Tm II ( configuration) and three levels in Tm III ( configuration) have been measured by using time-resolved laser spectroscopy. Free thulium atoms, as well as singly and doubly ionized ions, were obtained in a laser-induced thulium plasma and the investigated states were selectively populated by a single-step excitation process with a tunable narrow-band laser pulse.