Photoacoustic and plasmaelastic waves propagation in semiconductor medium heated by pulsed excitation with magnetic field effect

IF 4.4 2区物理与天体物理 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Results in Physics Pub Date : 2024-11-22 DOI:10.1016/j.rinp.2024.108053

Hashim M. Alshehri , Khaled Lotfy

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Abstract

Semiconductor materials play a crucial role in the fields of science, engineering, and technology due to their high importance. In this work, photoelastic (PE) deformations due to the photonically excited processes are studied according to the photogenerated carriers (plasma waves) during the recombination processes. A photoacoustic theoretical model for the optically excited Silicon (Si) polymer material under the effect of magnetic field is introduced. The coupled between the acoustic and plasm-thermomechanical waves is considered. The governing equation according to the photo-thermoelasticity theory with acoustic pressure is derived. The optoelectronic and thermoelastic properties of semiconductor material are taken into account. The analytical expression of the main physical fields (temperature, mechanical stress, displacement, carrier density, and acoustic pressure) is obtained mathematically using the harmonic wave technique. The theoretical results are represented graphically due to the strength of the magnetic field in two and three dimensions (2D and 3D) and some comparisons are investigated.

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光声波和等离子体弹性波在具有磁场效应的脉冲激励加热的半导体介质中的传播

半导体材料在科学、工程和技术领域发挥着至关重要的作用。在这项工作中，根据重组过程中光生载流子（等离子体波）研究了光子激发过程引起的光弹性（PE）变形。引入了磁场作用下光激发硅（Si）聚合物材料的光声理论模型。考虑了声波和等离子体热机械波之间的耦合。根据带有声压的光热弹性理论推导出了支配方程。考虑了半导体材料的光电和热弹性特性。主要物理场（温度、机械应力、位移、载流子密度和声压）的分析表达式是利用谐波技术用数学方法得到的。由于二维和三维（2D 和 3D ）磁场强度的影响，理论结果以图形表示，并进行了一些比较研究。

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来源期刊

Results in Physics MATERIALS SCIENCE, MULTIDISCIPLINARYPHYSIC-PHYSICS, MULTIDISCIPLINARY

CiteScore

8.70

自引率

9.40%

发文量

754

审稿时长

50 days

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