Ring-like damage morphologies produced by continuous-wave laser irradiation

L. N. Taylor, J. J. Talghader

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The surface damage morphologies produced by continuous-wave laser irradiation of coated optics were measured and analyzed. A few laser damage morphologies were observed to be bull's-eye patterns. It is noted that the bull's-eye pattern has some similarities to Bessel distributions of the form found in solutions of basic heat transfer or surface acoustic wave problems, which may indicate a relationship. If these morphologies are truly thermal phenomenon, then the Bessel ring diameter would be a function of thermal diffusivity. This might indicate that the ring diameter could be used to assess the resistance of a film to laser damage.

Original languageEnglish (US)
Title of host publication46th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials
Subtitle of host publication2014
EditorsGregory J. Exarhos, Detlev Ristau, Joseph A. Menapace, M.J. Soileau, Vitaly E. Gruzdev
PublisherSPIE
ISBN (Electronic)9781628413007
DOIs
StatePublished - 2014
Event46th Annual Laser Damage Symposium - Laser-Induced Damage in Optical Materials: 2014 - Boulder, United States
Duration: Sep 14 2014Sep 17 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9237
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

Other46th Annual Laser Damage Symposium - Laser-Induced Damage in Optical Materials: 2014
Country/TerritoryUnited States
CityBoulder
Period9/14/149/17/14

Bibliographical note

Publisher Copyright:
© 2014 SPIE.

Keywords

  • Heat transfer
  • Laser damage
  • Surface morphology
  • Thin films

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