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

Abstract

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.

Original language	English
Pages (from-to)	1392-1397
Number of pages	6
Journal	Journal of Engineering Physics and Thermophysics
Volume	87
Issue number	6
DOIs	https://doi.org/10.1007/s10891-014-1142-x
Publication status	Published - 2014

Keywords

coefficient of radiation absorption
germanium
laser-pulse method
methodological errors
numerical solution
thermal diffusivity
thickness and radius of a sample

ASJC Scopus subject areas

Condensed Matter Physics
Engineering(all)

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10.1007/s10891-014-1142-x

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

abstract = "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.",

keywords = "coefficient of radiation absorption, germanium, laser-pulse method, methodological errors, numerical solution, thermal diffusivity, thickness and radius of a sample",

author = "Kuznetsov, {G. V.} and Kats, {M. D.}",

year = "2014",

doi = "10.1007/s10891-014-1142-x",

language = "English",

volume = "87",

pages = "1392--1397",

journal = "Journal of Engineering Physics and Thermophysics",

issn = "1062-0125",

publisher = "Springer GmbH & Co, Auslieferungs-Gesellschaf",

number = "6",

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T1 - Influence of Sample Dimensions on Errors in Determining the Thermal Diffusivity of Semitransparent Semiconducting Materials by the Laser-Pulse Method

AU - Kuznetsov, G. V.

AU - Kats, M. D.

PY - 2014

Y1 - 2014

N2 - 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.

AB - 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.

KW - coefficient of radiation absorption

KW - germanium

KW - laser-pulse method

KW - methodological errors

KW - numerical solution

KW - thermal diffusivity

KW - thickness and radius of a sample

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