Eight- and nine-photon resonances in multiphoton ionization of xenon
- 1 February 1998
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 57 (2), R709-R712
- https://doi.org/10.1103/physreva.57.r709
Abstract
We have measured and analyzed the clear emergence of ac-Stark-shifted multiphoton resonances with successive photon orders in xenon. The remarkable quality of our data illustrates the unambiguous evolution through parity-allowed resonances at the eight- and subsequent nine-photon levels. This marks a significant advance in showing that the transient resonance model is valid and strong optical-field ionization remains multiphoton in character at higher intensities. Furthermore, a simple Landau-Zener picture is sufficient to understand the basic principles.Keywords
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