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APS » Journals » Phys. Rev. A » Volume 60 » Issue 5
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Phys. Rev. A 60, 3916–3923 (1999)

Two-electron effects in the multiphoton ionization of magnesium with 400-nm 150-fs pulses

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D. Xenakis1,*, N. E. Karapanagioti1,*, D. Charalambidis1,2, H. Bachau3, and E. Cormier 3
1Laser and Applications Division, Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, P.O. Box 1527, GR-711 10 Heraklion, Greece
2Physics Department, University of Crete, GR-713 10 Heraklion, Greece
3Centre Lasers Intenses et Applications (Université Bordeaux I-CNRS), Université Bordeaux I, 351 Cours de la Libération, F-33405 Talence Cedex, France

Received 26 February 1999; published in the issue dated November 1999

The multiphoton ionization and photoelectron spectra of magnesium were studied at laser intensities of up to 6×1013 W cm-2 using 150-fs laser pulses of a wavelength of 400 nm. The results indicated that a variety of different ionization mechanisms played a role in both types of spectra. A theoretical model describing the processes is presented and the routes to ionization are identified. The work demonstrates the significance of the two-electron nature of the atom in interpreting the experimental results.

© 1999 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.60.3916
DOI:
10.1103/PhysRevA.60.3916
PACS:
32.80.Rm, 32.80.Fb, 32.80.Wr

*Present address: Max-Planck-Institut für Quantenoptik, Hans-Kopfermannstrasse, D-85748 Garching, Germany.

 
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