Double multiphoton ionisation via above-threshold ionisation in strontium atoms
- 28 May 1985
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 18 (10) , L281-L286
- https://doi.org/10.1088/0022-3700/18/10/004
Abstract
Simple and double ionisation of a strontium atomic beam have been studied with a picosecond dye laser around 565 nm with intensities ranging from 10 to 1000 GW cm-2. Resonances observed on the different ion signals as well as time-of-flight electron energy spectra clearly show that double ionisation is a two-step process which can involve above-threshold ionisation followed by resonant ionisation of the ion.Keywords
This publication has 4 references indexed in Scilit:
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