Wave reflection in semiconductor nanostructures

Wave reflection in semiconductor nanostructures

ABSTRACT: Based on nonlocal thermoelastic theory, this article studies the reflection of waves in nanometer semi-conductor media. Firstly, the governing equations are established based on coupled nonlocal elasticity theory, plasma diffusion equation, and moving equation. Then, using the harmonic met...

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Main Authors: Feixiang Tang, Yaqin Song
Format: Article
Language:English
Published: Elsevier 2018-05-01
Series:Theoretical and Applied Mechanics Letters
Online Access:http://www.sciencedirect.com/science/article/pii/S2095034918301041
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spelling doaj-a474a1b6ded84722ba05d848e173709e2020-11-25T00:26:42ZengElsevierTheoretical and Applied Mechanics Letters2095-03492018-05-0183160163Wave reflection in semiconductor nanostructuresFeixiang Tang0Yaqin Song1State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, Xi'an 710049, ChinaCorresponding author; State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, Xi'an 710049, ChinaABSTRACT: Based on nonlocal thermoelastic theory, this article studies the reflection of waves in nanometer semi-conductor media. Firstly, the governing equations are established based on coupled nonlocal elasticity theory, plasma diffusion equation, and moving equation. Then, using the harmonic method, the solution of the dissipation equation and the analytic expression of the reflection coefficient rate are obtained. Finally, the influences of nonlocal parameters on wave velocities are showed graphically. It is found that after the introduction of nonlocal effect, the phase and group velocities all show the attenuation, and as the frequency increases, the nonlocal parameter is bigger, and the decay rate is faster. The reflection coefficient rate varies greatly with different theories, with different reflection coefficient rates depending on the incident angle. Keywords: Nonlocal theory, Generalized thermoelastic theory, Wave velocity, Reflection coefficient ratehttp://www.sciencedirect.com/science/article/pii/S2095034918301041
collection DOAJ
language English
format Article
sources DOAJ
author Feixiang Tang
Yaqin Song
spellingShingle Feixiang Tang
Yaqin Song
Wave reflection in semiconductor nanostructures
Theoretical and Applied Mechanics Letters
author_facet Feixiang Tang
Yaqin Song
author_sort Feixiang Tang
title Wave reflection in semiconductor nanostructures
title_short Wave reflection in semiconductor nanostructures
title_full Wave reflection in semiconductor nanostructures
title_fullStr Wave reflection in semiconductor nanostructures
title_full_unstemmed Wave reflection in semiconductor nanostructures
title_sort wave reflection in semiconductor nanostructures
publisher Elsevier
series Theoretical and Applied Mechanics Letters
issn 2095-0349
publishDate 2018-05-01
description ABSTRACT: Based on nonlocal thermoelastic theory, this article studies the reflection of waves in nanometer semi-conductor media. Firstly, the governing equations are established based on coupled nonlocal elasticity theory, plasma diffusion equation, and moving equation. Then, using the harmonic method, the solution of the dissipation equation and the analytic expression of the reflection coefficient rate are obtained. Finally, the influences of nonlocal parameters on wave velocities are showed graphically. It is found that after the introduction of nonlocal effect, the phase and group velocities all show the attenuation, and as the frequency increases, the nonlocal parameter is bigger, and the decay rate is faster. The reflection coefficient rate varies greatly with different theories, with different reflection coefficient rates depending on the incident angle. Keywords: Nonlocal theory, Generalized thermoelastic theory, Wave velocity, Reflection coefficient rate
url http://www.sciencedirect.com/science/article/pii/S2095034918301041
work_keys_str_mv AT feixiangtang wavereflectioninsemiconductornanostructures
AT yaqinsong wavereflectioninsemiconductornanostructures
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