Damage effects of filaments on non-transparent materials at long distances

  • Karsten Diener
  • , Harmut Borchert
  • , Rüdiger Schmitt
  • , Magali Durand
  • , Aurélien Houard
  • , Bernard Prade
  • , André Mysyrowicz
  • , Anne Durécu
  • , Didier Fleury
  • , Bernard Moreau
  • , Olivier Vasseur
  • , Francis Théberge
  • , Marc Chateauneuf
  • , Jacques Dubois

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We observed multiple filamentation of a Terawatt fs-laser beam (λ = 800 nm, E = 170 mJ/pulse) after 1 km horizontal propagation in the atmosphere. The interaction of these filaments with the non-transparent targets was studied. The filaments were strong enough to damage the surface of optical windows like Ge and ZnSe even at long distances and under turbulent conditions. The damage effects were analysed by studying the modulation transfer function (MTF), the spectral transmission loss, the ablation depth and the damage threshold. LIBS was applied to estimate the plasma temperature during the interaction process.

Original languageEnglish
Title of host publication43rd Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials
Subtitle of host publication2011
DOIs
Publication statusPublished - 1 Dec 2011
Event43rd Annual Laser Damage Symposium - Laser-Induced Damage in Optical Materials: 2011 - Boulder, CO, United States
Duration: 18 Sept 201021 Sept 2010

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8190
ISSN (Print)0277-786X

Conference

Conference43rd Annual Laser Damage Symposium - Laser-Induced Damage in Optical Materials: 2011
Country/TerritoryUnited States
CityBoulder, CO
Period18/09/1021/09/10

Keywords

  • damage threshold
  • femtosecond
  • filament
  • germanium
  • zinc selenide

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