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

Abstract:

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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.

Info:

Periodical:

Materials Science Forum (Volumes 527-529)

Edited by:

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

Pages:

703-706

DOI:

10.4028/www.scientific.net/MSF.527-529.703

Citation:

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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Price:

$35.00

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