https://doi.org/10.1007/s10053-000-9066-8
Inelastic cross-sections and natural lifetimes for the 62D3/2,5/2 and 82S1/2 states of Rb
1
Institute of Atomic Physics and Spectroscopy,
University of Latvia, Raina bulv. 19, 1586 Riga, Latvia
2
Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46,
02-668 Warsaw, Poland
Received:
1
December
1998
Revised:
17
May
1999
Published online: 13 August 2013
The results of an experimental study of
population dynamics following excitation of
and
states of rubidium are reported. Excitation transfer and quenching
cross-sections in
collisions with ground state rubidium atoms, and natural lifetimes have been measured.
The
experiment was performed in a vapour cell, using pulsed two-photon excitation and
photon
counting detection. The analysis of time dependent signals was based on a rate
equation
model in which transitions
induced by thermal radiation have been accounted for. The
measurements yielded following results:
(1)
state J-mixing cross-section:
;
(2) cross-sections for
excitation transfer process:
;
(3) quenching cross-sections: 
,
,
; (4) radiative lifetimes:
ns,
ns,
ns.
PACS: 34.50.Fa – Electronic excitation and ionization of atoms (including beam-foil excitation and ionization) / 32.70.Cs – Oscillator strengths, lifetimes, transition moments / 32.50.+d – Fluorescence, phosphorescence (including quenching)
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000
