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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 29 — Oct. 10, 2010
  • pp: 5537–5544

Effect of defects on long-pulse laser-induced damage of two kinds of optical thin films

Bin Wang, Yuan Qin, Xiaowu Ni, Zhonghua Shen, and Jian Lu  »View Author Affiliations

Applied Optics, Vol. 49, Issue 29, pp. 5537-5544 (2010)

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In order to study the effect of defects on the laser-induced damage of different optical thin films, we carried out damage experiments on two kinds of thin films with a 1 ms long-pulse laser. Surface-defect and subsurface-defect damage models were used to explain the damage morphology. The two-dimensional finite element method was applied to calculate the temperature and thermal-stress fields of these two films. The results show that damages of the two films are due to surface and subsurface defects, respectively. Furthermore, the different dominant defects for thin films of different structures are discussed.

© 2010 Optical Society of America

OCIS Codes
(140.3330) Lasers and laser optics : Laser damage
(310.6870) Thin films : Thin films, other properties

ToC Category:
Thin Films

Original Manuscript: June 18, 2010
Revised Manuscript: August 29, 2010
Manuscript Accepted: September 9, 2010
Published: October 5, 2010

Bin Wang, Yuan Qin, Xiaowu Ni, Zhonghua Shen, and Jian Lu, "Effect of defects on long-pulse laser-induced damage of two kinds of optical thin films," Appl. Opt. 49, 5537-5544 (2010)

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