ibrabbas7

Prof. Dr. Ibrahim A. Abbas

Professor - Department of Mathematics

Faculty of science

Address: Sohag University, Egypt.

219

Like

Publications Which contain the keyword: photothermal waves


2019-10-02 08:19:50 Keywords semiconductor, photothermal waves,
Модель двухфазного сдвига фототермоупругих волн в двумерной полупроводниковой среде1
В статье с использованием обобщенной модели фототермической волны и модели двухфазного запаздывания проведены расчеты приращения температуры, компонент смещения, плотности носителей и компонент напряжений в двумерных полупроводниковых средах. С помощью преобразований Фурье и Лапласа в рамках подхода к определению собственных значений получены точные решения для всех физических величин. Исследование полупроводниковой среды проведено на примере кремния. С использованием полученных результатов проиллюстрирована разница ... Read more

2019-10-02 08:04:58 Keywords semiconductor, photothermal waves,
Two-Temperature Photothermal Interactions in a Semiconducting Material with a 3-D Spherical Cavity
In this paper, a two-temperatures photothermoelastic interactions in an infinite semiconductor medium with a spherical cavity were studied using mathematical methods. The cavity internal surface is traction free and the carrier density is photogenerated by boundary heat flux with an exponentially decaying pulse. Laplace transform techniques are used to obtain the exact solution of the problem in the transformed domain ... Read more

2019-10-02 07:52:16 Keywords photothermal waves, semiconductor,
A GN model on photothermal interactions in a two-dimensions semiconductor half space
The model of coupled plasma and thermo-elastic wave were used to investigate the wave propagation in a two-dimensional semiconducting half space by using eigenvalues approach. By using Fourier and Laplace transformations with the eigenvalues techniques methodology, the exact solution of all physical quantities is obtained. The boundary edge of the plane is due to a heat flux with a pulse ... Read more

2018-10-06 21:26:58 Keywords ylindrical cavity, semiconductor, photothermal waves,
A study on photothermal waves in an unbounded semiconductor medium with cylindrical cavity
The theory of coupled plasma, thermal, and elastic waves was used to investigate the wave propagation on semiconductor material with cylindrical cavity during photo-thermoelastic process. An unbounded material, elastic semiconductor containing a cylindrical cavity with isotropic and homogeneous thermal and elastic properties has been considered. The inner surface of cavity is constrained, and the carrier density is photogenerated by an ... Read more

2018-10-06 09:30:09 Keywords photothermal waves, dual phase lag model, semiconductor,
A dual phase lag model on photothermal interaction in an unbounded semiconductor medium with cylindrical cavity
In the present paper, the theory of generalized photo-thermoelasticity under dual phase lag model has been applied to study the coupled thermal, plasma and elastic waves on unbounded semiconductor medium with cylindrical cavity. The bounding surface of the cavity is traction free and loaded thermally by exponentially decaying pulse boundary heat flux. By using Laplace transform and the eigenvalue approach ... Read more

2018-10-06 07:46:31 Keywords focused laser beam, photothermal waves, semiconductor,
A study on photothermal waves in a semiconductor material photogenerated by a focused laser beam
In this work, the theory of coupled plasma, thermal and elastic waves were used to investigate the wave propagation on semiconductor material during photo-thermo-elastic process. A thin slim strip (TSS) medium, elastic semiconductor with isotropic and homogeneous thermal and elastic properties have been considered. The plasma, thermal and elastic waves in a TSS photo generated by a focused and intensity ... Read more