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

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2 Citations (Scopus)

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 languageEnglish
Pages (from-to)1392-1397
Number of pages6
JournalJournal of Engineering Physics and Thermophysics
Volume87
Issue number6
DOIs
Publication statusPublished - 2014

Fingerprint

Thermal diffusivity
thermal diffusivity
Laser pulses
radiation absorption
pulses
radiative transfer
lasers
germanium
Radiative transfer
Germanium
Radiation
energy

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)

Cite this

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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.",
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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

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AU - Kats, M. D.

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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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