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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 9 — Mar. 20, 2011
  • pp: C433–C440

Influence of cleaning process on the laser-induced damage threshold of substrates

Zhengxiang Shen, Tao Ding, Xiaowen Ye, Xiaodong Wang, Bin Ma, Xinbin Cheng, Huasong Liu, Yiqin Ji, and Zhanshan Wang  »View Author Affiliations

Applied Optics, Vol. 50, Issue 9, pp. C433-C440 (2011)

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The cleaning process of optical substrates plays an important role during the manufacture of high-power laser coatings. Two kinds of substrates, fused silica and BK7 glass, and two cleaning processes, called process 1 and process 2 having different surfactant solutions and different ultrasonic cleaning param eters, are adopted to compare the influence of the ultrasonic cleaning technique on the substrates. The evaluation standards of the cleaning results include contaminant-removal efficiency, weak absorption, and laser-induced damage threshold of the substrates. For both fused silica and BK7, process 2 is more efficient than process 1. Because acid and alkaline solutions can increase the roughness of BK7, process 2 is unsuitable for BK7 glass cleaning. The parameters of the cleaning protocol should be changed depending on the material of the optical components and the type of contamination.

© 2011 Optical Society of America

OCIS Codes
(140.3330) Lasers and laser optics : Laser damage
(350.3390) Other areas of optics : Laser materials processing

Original Manuscript: August 2, 2010
Revised Manuscript: December 21, 2010
Manuscript Accepted: December 21, 2010
Published: March 15, 2011

Zhengxiang Shen, Tao Ding, Xiaowen Ye, Xiaodong Wang, Bin Ma, Xinbin Cheng, Huasong Liu, Yiqin Ji, and Zhanshan Wang, "Influence of cleaning process on the laser-induced damage threshold of substrates," Appl. Opt. 50, C433-C440 (2011)

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