Multiphoton ionisation of strontium creating Sr+and Sr2+
- 14 June 1982
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 15 (11) , 1663-1670
- https://doi.org/10.1088/0022-3700/15/11/012
Abstract
Multiphoton ionisation of strontium atoms to Sr+ and Sr2+ has been investigated with a Nd-YAG laser ( lambda =10642 AA), its second, third and fourth harmonics and a tunable dye laser in a wavelength region around 5321 AA. The power dependence of the Sr+ and Sr2+ production has been obtained. The creation of Sr2+ is discussed with respect to two models: the simultaneous excitation and elimination of two electrons and a stepwise ionisation via Sr+.Keywords
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