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Influence of Sample Dimensions on Errors in Determining the Thermal Diffusivity of Semitransparent Semiconducting Materials by the Laser-Pulse Method

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Journal of Engineering Physics and Thermophysics Aims and scope

An analysis has been made of the errors in determining the thermal diffusivity of a typical semiconducting material, i.e., germanium, due to the radiative transfer of energy in the heated layer of the material under the conditions that correspond to the implementation of the laser-pulse method when the material′s surface is exposed to a collimated finite-length laser pulse. The influence of the geometric dimensions of a sample and of the process of radiation absorption on the value of this error has been established.

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Authors and Affiliations

  1. National Research Tomsk Polytechnic University, Institute of Power Engineering, 30 Lenin Ave., Tomsk, 643050, Russia

    G. V. Kuznetsov & M. D. Kats

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  1. G. V. Kuznetsov
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  2. M. D. Kats
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Correspondence to G. V. Kuznetsov.

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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 87, No. 6, pp. 1335–1340, November–December, 2014.

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Kuznetsov, G.V., Kats, M.D. Influence of Sample Dimensions on Errors in Determining the Thermal Diffusivity of Semitransparent Semiconducting Materials by the Laser-Pulse Method. J Eng Phys Thermophy 87, 1392–1397 (2014). https://doi.org/10.1007/s10891-014-1142-x

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  • DOI: https://doi.org/10.1007/s10891-014-1142-x

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