Selective excitation of the 62
D
3/2 state of the atomic thallium beam |
| |
Authors: | P A Bokhan Dm E Zakrevsky V A Kim N V Fateev |
| |
Institution: | (1) Department of Physics, Bowdoin College, 15 Chestnut Rd., 04011 Brunswick, ME, USA |
| |
Abstract: | The absorption of the tunable narrow-band laser radiation with λ = 276.9 nm at the 62
P
1/2 → 62
D
3/2 transition in the atomic thallium beam is experimentally studied. The isotopic selectivity and efficiency of the excitation
of the 62
D
3/2 state is investigated. The splittings between the 203Tl and 205Tl isotopes were found to be Δv = 0.98 and 1.25 GHz for the transitions with the nuclear momenta F = 1 → F = 1, 2 and F = 0 → F = 1, respectively, which is sufficient for a relatively high isotopic selectivity of the 62
D
3/2 state excitation with the subsequent ionization for the laser separation of the thallium isotopes. The effects that lead
to the broadening of the resonance and a decrease in the selectivity are analyzed. The main contribution is related to the
field broadening by the laser radiation, which limits the mean laser power density. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|