Laser-Induced Damage Threshold of TiO2 Films with Different Preparation Methods and Annealing Temperatures
XU Cheng1**, YANG Shuai1, WANG Zhen2, DENG Jian-Xin3, ZHAO Yu-Long1, FAN He-Liang1, QIANG Ying-Huai1, LI Da-Wei4
1School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou 221116 2Jinan Urban Planing and Designing Institute, Jinan 250001 3School of Mechanical Engineering, Guangxi University, Guangxi 530004 4Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
Abstract：Sol-gel TiO2 films are prepared by the dip-coating method and the spin-coating method, and then annealing is performed at different temperatures. The structures, optical properties, surface morphologies, absorption and laser-induced damage threshold (LIDT) at 1064 nm and 12 ns of the films are investigated. The results show that the dip-coating method can be used to obtain a higher LIDT than the spin-coating method. When the annealing temperature increases from 80°C to 120°C, the dip-coated film obtains a higher LIDT, whereas the spin-coated film obtains a lower LIDT. In addition, the damage morphology is a spalling pit for the dip-coated film annealed at 80°C. When the annealing temperature increases to 120°C, it shows a melting area. For both the spin-coated films annealed at different temperatures, the damage morphologies are the combination of spalling and melting. The differences in LIDT and damage morphologies of the films are discussed.
. [J]. 中国物理快报, 2014, 31(07): 74207-074207.
XU Cheng, YANG Shuai, WANG Zhen, DENG Jian-Xin, ZHAO Yu-Long, FAN He-Liang, QIANG Ying-Huai, LI Da-Wei. Laser-Induced Damage Threshold of TiO2 Films with Different Preparation Methods and Annealing Temperatures. Chin. Phys. Lett., 2014, 31(07): 74207-074207.
2014, Vol. 31 
