Laser-Induced Damage Threshold of TiO2 Films with Different Preparation Methods and Annealing Temperatures

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 inves...

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Published in中国物理快报：英文版 no. 7; pp. 109 - 112
Main Author 许程 杨帅 王振 邓建新 赵宇龙 范贺良 强颖怀 李大伟
Format Journal Article
LanguageEnglish
Published 01.07.2014
Subjects
TiO2薄膜
二氧化钛膜
制备方法
损伤形态
旋涂法
浸渍涂布法
激光损伤阈值
退火温度
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ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/31/7/074207

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Summary: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℃ to 120℃, 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℃. When the annealing temperature increases to 120℃, it shows a melting area. For both the spin-coated films annealed at different temperatures, the damage morphologies are the combination of spelling and melting. The differences in LIDT and damage morphologies of the films are discussed.
Bibliography: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℃ to 120℃, 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℃. When the annealing temperature increases to 120℃, it shows a melting area. For both the spin-coated films annealed at different temperatures, the damage morphologies are the combination of spelling and melting. The differences in LIDT and damage morphologies of the films are discussed.
11-1959/O4
XU Cheng, YANG Shuai, WANG Zhen, DENG Jian-Xin, ZHAO Yu-Long, FAN He-Liang, QIANG Ying-guai, LI Da-Wei（1 School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou 221116 ; 2 Jinan 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）
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/31/7/074207