Thermal Effects Induced by Absorbing Inclusions in Laser Optical Films

Abstract:

The thermal transportation caused by absorbing inclusions in optical films under the radiation of laser pulse is unsteady heat conduction. The temperature distribution in films is ununiform and time-dependent. Considering the small size of inclusions, the absorbing inclusions were treaded as dot-heat sources. Based on this assumption, the unsteady heat conduction model was brought out and the temperature distribution in films was figured out and discussed, the mechanism that the catastrophic damage may avoid with micro-damage or micro-deformation in films through the release of stress concentration is presented. By comparing the thermal effects caused respectively by single inclusion and assembling ones, the effect of inclusion size on thermal damage in films was discussed.

• Periodical: Advanced Materials Research (Volumes 602-604)
• Pages: 1427-1430
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.602-604.1427
• Online since: December 2012
• Authors: Cai Hua Huang, Xiao Hua Sun, Yi Hua Sun, Jun Zou
• Keywords: Absorbing Inclusion, Laser Induced Damage, Optical Film, Thermal Effect

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