Chinese Optics Letters, 2010, 8 (2): 241, Published Online: Mar. 5, 2010
Study on the laser-induced damage threshold of sol-gel ZrO2-PVP coatings Download: 635次
溶胶-凝胶 薄膜 ZO2-PVP 激光损伤阈值 310.1210 Antireflection coatings 310.3840 Materials and process characterization
Abstract
In order to improve the laser-induced damage threshold (LIDT) of the ZrO<sub>2</sub> film, the effect of polyvinyl pyrrolidone (PVP) with different average molecular weight on coatings is studied. The ZrO<sub>2</sub> 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 ZrO<sub>2</sub>-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 ZrO<sub>2</sub>-PVP coatings is 43.5 J/cm<sup>2</sup> (1064 nm, 12 ns). The ZrO<sub>2</sub> sol and ZrO<sub>2</sub>-PVP (K16-18) sol have the good stability in 3 months. The refractive indices of the ZrO<sub>2</sub>-PVP coatings decrease with the increase of the PVP (K16-18) content.
Haiyuan Li, Huai Xiong, Yongxing Tang. Study on the laser-induced damage threshold of sol-gel ZrO2-PVP coatings[J]. Chinese Optics Letters, 2010, 8(2): 241.