Theoretical and experimental study on femtosecond laser-induced damage in MgF2 crystals

  • C. B. Li*
  • , T. Q. Jia
  • , H. Y. Sun
  • , X. X. Li
  • , S. Z. Xu
  • , D. H. Feng
  • , X. F. Wang
  • , X. C. Ge
  • , Z. Z. Xu
  • *Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

We study single-shot damage morphology of MgF2 irradiated under 800 nm laser using scanning electronic microscope (SEM). The dependence of damage threshold on laser pulse width is measured by the linear relationship between the area of damage spot and the logarithm of laser energy. The pulse duration ranges from 55 fs to 750 fs. We develop the multiple-equation model (Phys. Rev. Lett. Vol.92, pp.187401, 2004), in which two-photon absorption in the conduction band is considered. The experimental results agree well with our model.

Original languageEnglish
Article number60281L
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume6028
DOIs
StatePublished - 2005
Externally publishedYes
EventICO20: Lasers and Laser Technologies - Changchun, China
Duration: 21 Aug 200526 Aug 2005

Keywords

  • Damage mechanism
  • Femtosecond laser
  • Magnesium Fluoride
  • Two-photon absorption

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