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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea

| PUBLISHED BY THE OPTICAL SOCIETY OF KOREA

  • Vol. 17, Iss. 1 — Feb. 1, 2013
  • pp: 1–4

Study for Improvement of Laser Induced Damage of 1064 nm AR Coatings in Nanosecond Pulse

Hongfei Jiao, Xinbing Cheng, Jiangtao Lu, Ganghua Bao, Jinlong Zhang, Bin Ma, Huasong Liu, and Zhanshan Wang  »View Author Affiliations


Journal of the Optical Society of Korea, Vol. 17, Issue 1, pp. 1-4 (2013)


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Abstract

For the conventionally polished fused silica substrate, an around 100 nm depth redeposition polishing layer was formed on the top of surface. Polishing compounds, densely embedded in the redeposition polishing layer were the dominant factor that limited the laser induced damage threshold (LIDT) of transmission elements in nanosecond laser systems. Chemical etching, super-precise polishing and ion beam etching were employed in different ways to eliminate these absorbers from the substrate. After that, Antireflection (AR) coatings were deposited on these substrates in the same batch and then tested by 1064 nm nano-pulse laser. It was found that among these techniques only the ion beam etching method, which can effectively remove the polishing compound and did not induce extra absorbers during the disposal process, can successfully improve the LIDT of AR coatings.

© 2013 Optical Society of Korea

OCIS Codes
(140.3330) Lasers and laser optics : Laser damage
(220.5450) Optical design and fabrication : Polishing
(310.1210) Thin films : Antireflection coatings

History
Original Manuscript: October 30, 2012
Revised Manuscript: December 6, 2012
Manuscript Accepted: December 6, 2012
Published: February 25, 2013

Citation
Hongfei Jiao, Xinbing Cheng, Jiangtao Lu, Ganghua Bao, Jinlong Zhang, Bin Ma, Huasong Liu, and Zhanshan Wang, "Study for Improvement of Laser Induced Damage of 1064 nm AR Coatings in Nanosecond Pulse," J. Opt. Soc. Korea 17, 1-4 (2013)
http://www.opticsinfobase.org/josk/abstract.cfm?URI=josk-17-1-1


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