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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 22 — Aug. 1, 2010
  • pp: 4290–4295

Geometrical characteristics and damage morphology of nodules grown from artificial seeds in multilayer coating

Yongguang Shan, Hongbo He, Chaoyang Wei, Shuhong Li, Ming Zhou, Dawei Li, and Yuan’an Zhao  »View Author Affiliations

Applied Optics, Vol. 49, Issue 22, pp. 4290-4295 (2010)

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Nodules have been planted in an Hf O 2 / Si O 2 multilayer system with absorptive gold nanoparticle seeds located on the surface of a substrate. The topography of nodules was scanned by an atomic force microscope and imaged by a scanning electron microscope. The underlying characteristics of nodules were revealed by a focused ion beam. The cross-sectional profiles reveal that nodules grown from small seeds have a continuous boundary and better mechanical stability. A laser-induced damage test shows that nodules decrease the laser-induced damage threshold by up to 3 times. The damage pits are exclusively caused by nodular ejection and triggered by the absorptive seeds. The distribution of electric field and average temperature rise in the nodules were analyzed. Theoretical results met experimental results very well. The strong absorptive seed and microlens effect of the nodule play important roles in laser- induced damage of a planted nodule.

© 2010 Optical Society of America

OCIS Codes
(140.3440) Lasers and laser optics : Laser-induced breakdown
(310.6870) Thin films : Thin films, other properties

ToC Category:
Lasers and Laser Optics

Original Manuscript: April 26, 2010
Revised Manuscript: June 22, 2010
Manuscript Accepted: July 9, 2010
Published: July 29, 2010

Yongguang Shan, Hongbo He, Chaoyang Wei, Shuhong Li, Ming Zhou, Dawei Li, and Yuan’an Zhao, "Geometrical characteristics and damage morphology of nodules grown from artificial seeds in multilayer coating," Appl. Opt. 49, 4290-4295 (2010)

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