| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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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
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| Cite this article: |
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XU Cheng, YANG Shuai, WANG Zhen et al 2014 Chin. Phys. Lett. 31 074207 |
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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.
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Published: 30 June 2014
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| PACS: |
42.79.-e
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(Optical elements, devices, and systems)
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68.60.-p
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(Physical properties of thin films, nonelectronic)
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81.15.Ef
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