Abstract
Thermal diffusivity of three free-standing PCVD diamond films have been measured by ac calorimetric method. The thermal diffusivity ranges from 0.28cm2/s to 4.44cm2/s under a variety of the methane concentration from 0.2 to 1.0%(vol).
The systematic errors such as heat loss, non-one-dimensional heat conduction, edge reflection are considered. For the diamond sample, the edge reflection is not able to be negligible and it is analytically corrected.
© 1995 Optical Society of America
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