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  • CLEO/Europe and EQEC 2011 Conference Digest
  • OSA Technical Digest (CD) (Optica Publishing Group, 2011),
  • paper CM5_1

Ultrashort Pulse Laser Ablation of Dielectric Materials: Experiments and Modeling

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Abstract

The modeling of laser-excited dielectric materials requires a detailed description of the electronic excitation. Dielectric materials do not absorb visible light by traditional linear absorption, so the dynamical generation of conduction-band electrons strongly couples to the absorption. The generation of free electrons is initiated by strong-field excitation and followed by multiplication through impact ionization from energetic electrons heated by inverse bremsstrahlung. With free electrons present, absorption of the remaining part of the light pulse becomes much more efficient.

© 2011 Optical Society of America

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