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Advances in Aircraft and Spacecraft Science
  Volume 7, Number 1, January 2020 , pages 41-52
DOI: https://doi.org/10.12989/aas.2020.7.1.041
 

Photo-thermo-elastic interaction in a semiconductor material with two relaxation times by a focused laser beam
A. Jahangir, F. Tanvir and A. M. Zenkour

 
Abstract
    The effect of relaxation times is studied on plane waves propagating through semiconductor half-space medium by using the eigen value approach. The bounding surface of the half-space is subjected to a heat flux with an exponentially decaying pulse and taken to be traction free. Solution of the field variables are obtained in the form of series for a general semiconductor medium. For numerical values, Silicon is considered as a semiconducting material. The results are represented graphically to assess the influences of the thermal relaxations times on the plasma, thermal, and elastic waves.
 
Key Words
    semiconductor material; eigen value approach; elastic waves; focused laser beam; generalized thermoelastic theories
 
Address
A. Jahangir and F. Tanvir: Department of Mathematics, COMSATS University Islamabad, Wah Campus 47040, Pakistan

A. M. Zenkour: 1.) Department of Mathematics, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
2.) Department of Mathematics, Faculty of Science, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
 

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