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Geometrical method for determining the surface damage threshold for femtosecond laser pulses

  • Nonlinear Optics and Spectroscopy
  • Published:
Laser Physics

Abstract

A new geometrical method to determine the surface damage threshold for ultrashort pulses is presented. It consists in the formation of a surface damage profile by a movement of the sample across the laser beam focus. A single measurement of the maximum transversal dimension of this damage profile, which depends solely on the laser beam power, is used to calculate the local damage threshold intensity. It is also theoretically shown that the damage in the transverse dimension can be controlled under the diffraction-limited spot.

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Authors and Affiliations

  1. Center for Lasers and Applications, IPEN/CNEN-SP, Cidade Universitária, Av. Prof. Lineu Prestes 2242, 05508-000, São Paulo-SP, Brazil

    R. E. Samad & N. D. Vieira Jr.

Authors
  1. R. E. Samad
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  2. N. D. Vieira Jr.
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Original Text © Astro, Ltd., 2006.

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Samad, R.E., Vieira, N.D. Geometrical method for determining the surface damage threshold for femtosecond laser pulses. Laser Phys. 16, 336–339 (2006). https://doi.org/10.1134/S1054660X06020228

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  • DOI: https://doi.org/10.1134/S1054660X06020228

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