Excitation of THz plasmonic eignmode of parallel plain waveguide by using GaAs material

A Terahertz wave incident on waveguide made up of two parallel thin metal plates sandwiching a thin region of GaAs semiconductor, excites a surface plasma wave (SPW), at the metal–semiconductor interface. As the frequency of SPW increases the real part of the propagation vector increases linearly wh...

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Main Authors: Sandeep, Hitendra K. Malik
Format: Article
Language:English
Published: Elsevier 2023-07-01
Series:Results in Optics
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666950123001098
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author Sandeep
Hitendra K. Malik
author_facet Sandeep
Hitendra K. Malik
author_sort Sandeep
collection DOAJ
description A Terahertz wave incident on waveguide made up of two parallel thin metal plates sandwiching a thin region of GaAs semiconductor, excites a surface plasma wave (SPW), at the metal–semiconductor interface. As the frequency of SPW increases the real part of the propagation vector increases linearly where the imaginary part of the propagation vector decay parabolically. It is also observed that the distortion of the pulse due to the Terahertz wave (THz) has different component of different phase velocity. The proposed methodology entails the generation of terahertz plasmonic eigenmodes within a parallel planar waveguide composed of GaAs material. The areas of focus in this field include THz Waveguiding and Routing, THz Modulators and Switches, THz Sensing and Imaging and THz Integrated Photonics.
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spelling doaj.art-7af5b18804084deb877cad3da14bcb132023-08-29T04:18:10ZengElsevierResults in Optics2666-95012023-07-0112100457Excitation of THz plasmonic eignmode of parallel plain waveguide by using GaAs material Sandeep0Hitendra K. Malik1Plasma Science and Technology Laboratory, Indian Institute of Technology Delhi, New Delhi 110 016, India; Department of Physics, Deen Dayal Upadhyaya College, University of Delhi, New Delhi 110078, India; Corresponding author at: Plasma Science and Technology Laboratory, Indian Institute of Technology Delhi, New Delhi 110 016, India.Plasma Science and Technology Laboratory, Indian Institute of Technology Delhi, New Delhi 110 016, IndiaA Terahertz wave incident on waveguide made up of two parallel thin metal plates sandwiching a thin region of GaAs semiconductor, excites a surface plasma wave (SPW), at the metal–semiconductor interface. As the frequency of SPW increases the real part of the propagation vector increases linearly where the imaginary part of the propagation vector decay parabolically. It is also observed that the distortion of the pulse due to the Terahertz wave (THz) has different component of different phase velocity. The proposed methodology entails the generation of terahertz plasmonic eigenmodes within a parallel planar waveguide composed of GaAs material. The areas of focus in this field include THz Waveguiding and Routing, THz Modulators and Switches, THz Sensing and Imaging and THz Integrated Photonics.http://www.sciencedirect.com/science/article/pii/S2666950123001098GaAs structureSurface plasma waveTM ModeTerahertz radiationAbsorptionWaveguide
spellingShingle Sandeep
Hitendra K. Malik
Excitation of THz plasmonic eignmode of parallel plain waveguide by using GaAs material
Results in Optics
GaAs structure
Surface plasma wave
TM Mode
Terahertz radiation
Absorption
Waveguide
title Excitation of THz plasmonic eignmode of parallel plain waveguide by using GaAs material
title_full Excitation of THz plasmonic eignmode of parallel plain waveguide by using GaAs material
title_fullStr Excitation of THz plasmonic eignmode of parallel plain waveguide by using GaAs material
title_full_unstemmed Excitation of THz plasmonic eignmode of parallel plain waveguide by using GaAs material
title_short Excitation of THz plasmonic eignmode of parallel plain waveguide by using GaAs material
title_sort excitation of thz plasmonic eignmode of parallel plain waveguide by using gaas material
topic GaAs structure
Surface plasma wave
TM Mode
Terahertz radiation
Absorption
Waveguide
url http://www.sciencedirect.com/science/article/pii/S2666950123001098
work_keys_str_mv AT sandeep excitationofthzplasmoniceignmodeofparallelplainwaveguidebyusinggaasmaterial
AT hitendrakmalik excitationofthzplasmoniceignmodeofparallelplainwaveguidebyusinggaasmaterial