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Chinese Optics Letters

Chinese Optics Letters


  • Vol. 8, Iss. 2 — Feb. 1, 2010
  • pp: 241–243

Study on the laser-induced damage threshold of sol-gel ZrO2-PVP coatings

Haiyuan Li, Huai Xiong, and Yongxing Tang  »View Author Affiliations

Chinese Optics Letters, Vol. 8, Issue 2, pp. 241-243 (2010)

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In order to improve the laser-induced damage threshold (LIDT) of the ZrO2 film, the effect of polyvinyl pyrrolidone (PVP) with different average molecular weight on coatings is studied. The ZrO2 sol is prepared by the hydrolysis of zirconium n-propoxide with acetylacetone as the chelating agent. The PVP (K16-18) is more suitable to obtain high LIDT coatings than other PVPs. The LIDT of the ZrO2-PVP coatings is improved with the increase of the PVP (K16-18) content. When the PVP (K16-18) content is 2.4 wt.-%, the LIDT of the ZrO2-PVP coatings is 43.5 J/cm2 (1064 nm, 12 ns). The ZrO2 sol and ZrO2-PVP (K16-18) sol have the good stability in 3 months. The refractive indices of the ZrO2-PVP coatings decrease with the increase of the PVP (K16-18) content.

© 2010 Chinese Optics Letters

OCIS Codes
(310.1210) Thin films : Antireflection coatings
(310.3840) Thin films : Materials and process characterization

Haiyuan Li, Huai Xiong, and Yongxing Tang, "Study on the laser-induced damage threshold of sol-gel ZrO2-PVP coatings," Chin. Opt. Lett. 8, 241-243 (2010)

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