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Terahertz frequency selective surfaces using heterostructures based on two-dimensional diffraction grating of single-walled carbon nanotubes

Lerer, Alexander M ; Timoshenko, Pavel E ; Rochal, Sergei B

arXiv.org, 2022-03

Ithaca: Cornell University Library, arXiv.org

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Título:
Terahertz frequency selective surfaces using heterostructures based on two-dimensional diffraction grating of single-walled carbon nanotubes
Autor: Lerer, Alexander M ; Timoshenko, Pavel E ; Rochal, Sergei B
Materias: Differential equations ; Electromagnetic radiation ; Frequency ranges ; Frequency selective surfaces ; Galerkin method ; Graphene ; Gratings (spectra) ; Heterostructures ; Numerical models ; Physics - Applied Physics ; Physics - Mesoscale and Nanoscale Physics ; Polaritons ; Resonance ; Single wall carbon nanotubes ; Terahertz frequencies ; Two dimensional models ; Wave diffraction
Es parte de: arXiv.org, 2022-03
Descripción: For single-walled carbon nanotubes (SWCNTs) with a length of 1-50 nm, the surface plasmon-polariton (SPP) resonance is within the terahertz frequency range; therefore, SWCNT lattices can be used to design frequency-selective surface (FSS). The numerical model of electromagnetic wave diffraction on a two-dimensional periodic SWCNT lattice can be described by an integro-differential equation of the second-order with respect to the surface current along SWCNT. The equation can be solved by the Bubnov-Galerkin method. Frequency dependence of reflecting and transmitting electromagnetic waves for FSSs near the SPP resonance are studied numerically. It is shown that the resonances are within the lower-frequency part of the terahertz range. Also, we estimate the relaxation frequency of an individual SWCNT and demonstrate the applicability of the Kubo formula for graphene conductivity to array of strips similar in size with SWCNTs under consideration.
Editor: Ithaca: Cornell University Library, arXiv.org
Idioma: Inglés

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Terahertz frequency selective surfaces using heterostructures based on two-dimensional diffraction grating of single-walled carbon nanotubes

Lerer, Alexander M ; Timoshenko, Pavel E ; Rochal, Sergei B

Ithaca: Cornell University Library, arXiv.org

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