Above-threshold ionisation
- 1 October 1988
- journal article
- Published by IOP Publishing in European Journal of Physics
- Vol. 9 (4), 265-275
- https://doi.org/10.1088/0143-0807/9/4/004
Abstract
Above-threshold ionisation (ATI) is the name given to the absorption of photons by an already ionised atomic electron. This is a new unexpected phenomenon in multi-photon physics. ATI has been found to occur readily at light intensities above 1 TW cm-2 in light pulses short enough to eliminate the influence of collisions. ATI arises from the simultaneous phase-coherent interaction of a single atomic electron with its parent ion and with laser light.Keywords
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