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13 May 1997 Heat transfer from localized absorbing defects to the host coating material in HfO2/SiO2 multilayer systems
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Abstract
Finite-element analysis was applied in calculating the heat- transfer effects from localized absorbing defects to the host coating material in multilayer HfO2/SiO2 system, irradiated by 1-ns pulses. Thermoconductivity was considered the major heat-transfer mechanism. A comparison with high-resolution laser-damage morphology studies carried out by means of atomic-force microscopy allowed estimating peak temperatures reached by the absorbing defects. These peak-temperature values as well as the lateral length scales of the empirically found laser-damage features point toward the importance of radiative energy transfer from the heated defect as the driving mechanism of laser-damage initiation.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Semyon Papernov and Ansgar W. Schmid "Heat transfer from localized absorbing defects to the host coating material in HfO2/SiO2 multilayer systems", Proc. SPIE 2966, Laser-Induced Damage in Optical Materials: 1996, (13 May 1997); https://doi.org/10.1117/12.274258
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