Study on the laser-induced damage threshold of sol-gel ZO<sub>2</sub>-PVP coatings

Haiyuan Li; Huai Xiong; Yongxing Tang

doi:10.3788/col20100802.0241

Collection Of theses on high power laser and plasma physics, Volume. 10, Issue 1, 241(2010)

Study on the laser-induced damage threshold of sol-gel ZO₂-PVP coatings

Haiyuan Li^*, Huai Xiong, and Yongxing Tang

Joint Laboratory for High Power Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai 201800, China

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In order to improve the laser-induced damage threshold (LIDT) of the ZrO₂film, 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.

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Haiyuan Li, Huai Xiong, Yongxing Tang. Study on the laser-induced damage threshold of sol-gel ZO₂-PVP coatings[J]. Collection Of theses on high power laser and plasma physics, 2010, 10(1): 241

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Paper Information

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Received: Mar. 18, 2009

Accepted: --

Published Online: Jun. 2, 2017

The Author Email: Li Haiyuan (haiyuanli@siom.ac.cn)

DOI:10.3788/col20100802.0241

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology