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Dielectric wire wrapped in graphene layer with a slot as a plasmonic absorber of THz waves

Abstract : Considered is the scattering of an H-polarized plane wave by a dielectric wire with a graphene cover, which is shaped trip. We derive a hyper-singular integral equation for the electric current induced on the strip and discretize it using a Nystrom-type method. This provides the convergence of the algorithm that enables us to plot the dependences of the absorption cross-section (ACS) on the frequency, graphene strip angular width, and its orientation angle. We derive approximate characteristic equation for the frequencies of the plasmon modes as a function of the width of graphene strip. At the resonance frequencies, we control the maximum values of ACS by changing the orientation angle of the graphene strip. © 2019 IEEE.
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-02399671
Contributor : Laurent Jonchère <>
Submitted on : Monday, December 9, 2019 - 11:06:25 AM
Last modification on : Monday, October 5, 2020 - 9:50:29 AM

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S.V. Dukhopelnykov, M.G. Vigueras, R. Sauleau. Dielectric wire wrapped in graphene layer with a slot as a plasmonic absorber of THz waves. 2nd IEEE Ukraine Conference on Electrical and Computer Engineering, UKRCON 2019, Jul 2019, Lviv, Ukraine. pp.766-770, ⟨10.1109/UKRCON.2019.8879886⟩. ⟨hal-02399671⟩

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