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Article Dans Une Revue Ultramicroscopy Année : 2016

Effect of the laser pulse width on the field evaporation behavior of metals and oxides

Résumé

The laser assisted field-evaporation of metals and oxides strongly depends on the illumination conditions. Here we study the effect of laser pulse width using two different laser systems, with a pulse duration of a few tens of femtoseconds and a few tens of picoseconds, respectively. Adjusting the laser wavelength by nonlinear optical conversion systems, we study the evaporation behavior of FeCu and MgO samples. We prove that the laser pulse width does not affect the evaporation behavior, in the range of duration explored. These results are explained taking into account the absorption behavior of nanometric samples and their thermal properties. (C) 2015 Elsevier B.V. All rights reserved.
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hal-01611206 , version 1 (05-10-2017)

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Bernard Deconihout, Angela Vella, H. Wang, Jonathan Houard, L. Arnoldi, et al.. Effect of the laser pulse width on the field evaporation behavior of metals and oxides. Ultramicroscopy, 2016, 160, pp.18-22. ⟨10.1016/j.ultramic.2015.09.009⟩. ⟨hal-01611206⟩
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