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Investigation of laser induced structures in multiphoton ionization of magnesium

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Zeitschrift für Physik D Atoms, Molecules and Clusters

Abstract

We examine the effect of the excitation of an autoionizing state on electron spectra resulting from multiphoton-ionization. We study the case of above threshold three-photon ionization of magnesium in the region of the 3p3d 1 P 0 resonance, with conditions similar to a two-colour experiment recently performed. The electron spectrum is compared to the partial spectrum corresponding to the region located just above the threshold (which is populated through two-photon absorption from a probing laser). The calculations confirm the experimental observations, a laser induced continuum structure (LICS) is observed in this partial spectrum. The interference process in examined in detail and a Fano-like parametrization of the two-photon ionization electron profile is proposed.

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Author notes

  1. I. Sánchez

    Present address: Departamento de Quýmica C-9, Universidad Autonóma de Madrid, E-28049, Madrid, Spain

Authors and Affiliations

  1. Laboratoire des Collisions Atomiques, Centre de Physique Théorique et de Modélisation, Université de Bordeaux I, 351 Cours de la Libération, F-33405, Talence, France

    H. Bachau & I. Sánchez

Authors
  1. H. Bachau
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  2. I. Sánchez
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Unité de recherche associée au CNRS 1537

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Bachau, H., Sánchez, I. Investigation of laser induced structures in multiphoton ionization of magnesium. Z Phys D - Atoms, Molecules and Clusters 38, 19–23 (1996). https://doi.org/10.1007/s004600050057

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  • DOI: https://doi.org/10.1007/s004600050057

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