Affiliation:
1. Universidade Federal de Juiz de Fora
2. Universidade Federal de Pernambuco
3. Universidade Estadual do Norte Fluminense
Abstract
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.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
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