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Abstract <p>The effective scattering surface, i.e., the RCS parameter of the graphene nanoribbon array irradiated by a normally incident terahertz <i>TEM-</i>wave (<i>p</i>-polarization) with applying an perpendicular external magnetic field has been simulated using the CST MWS software package. A numerical investigation has been performed of the ratio of the amplitudes of the horizontal <i>E</i><sub><i>x</i></sub> and vertical <i>E</i><sub><i>y</i></sub> components of the scattered field at the points of the main lobe cross section of the scattering pattern in the absence and with an external magnetic field. It is shown that as a result of diffraction of a linearly polarized <i>TEM</i>-wave on the graphene nanoribbon array with applied magnetic field, the transmitted and reflected waves have an elliptical polarization (the polarization ellipse being strongly elongated), in contrast to the case of zero external magnetic field, when the transmitted and reflected waves have a linear polarization.</p>

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Numerical Simulation of Scattering Patterns of Terahertz Waves on Graphene Nanoribbon Arrays in a Magnetic Field

  • 期刊论文

  • 发表日期：

    2025年7月1日

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  • M. S. Nikitin,
  • G. S. Makeeva

摘要

Abstract

The effective scattering surface, i.e., the RCS parameter of the graphene nanoribbon array irradiated by a normally incident terahertz TEM-wave (p-polarization) with applying an perpendicular external magnetic field has been simulated using the CST MWS software package. A numerical investigation has been performed of the ratio of the amplitudes of the horizontal Ex and vertical Ey components of the scattered field at the points of the main lobe cross section of the scattering pattern in the absence and with an external magnetic field. It is shown that as a result of diffraction of a linearly polarized TEM-wave on the graphene nanoribbon array with applied magnetic field, the transmitted and reflected waves have an elliptical polarization (the polarization ellipse being strongly elongated), in contrast to the case of zero external magnetic field, when the transmitted and reflected waves have a linear polarization.