Thermal Lens Technique for the Determination of SiC Thermo-Optical Properties


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In this paper we combine the use of photo-thermal techniques, Thermal lens (TL) spectrometry, Photoacoustic and heat capacity measurements to determine the optical path dependence with temperature (ds/dT) of a polycrystalline 3C-SiC sample. Results obtained for the polycrystalline sample with the TL technique show that ds/dT is negative at room temperature. This means that the thermal lens formed in 3C-SiC acts as a divergent lens when light impinges the sample. Our measurements, demonstrate that photo-thermal techniques can be used to obtain thermal parameters in circumstances where other techniques cannot be used, for example, in harsh environments.



Materials Science Forum (Volumes 527-529)

Edited by:

Robert P. Devaty, David J. Larkin and Stephen E. Saddow




V. Anjos et al., "Thermal Lens Technique for the Determination of SiC Thermo-Optical Properties", Materials Science Forum, Vols. 527-529, pp. 703-706, 2006

Online since:

October 2006




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