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Unidirectional surface waves in bi-anisotropic media

Karimi, P ; Sharif University of Technology | 2018

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  1. Type of Document: Article
  2. DOI: 10.1109/JQE.2018.2869886
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2018
  4. Abstract:
  5. We show theoretically that unidirectional surface waves can propagate on the surface of homogeneous bi-anisotropic layers with an anti-symmetric chirality tensor. These materials mimic the electromagnetic behavior of an anisotropic medium with gyrotropic permittivity and permeability tensors that operate on pseudo-electromagnetic fields. The unidirectional waves have transverse pseudo-electric or magnetic polarizations and pass through an obstacle without backscattering if the obstacle does not cause polarization change. The bi-anisotropic medium can be realized as a metamaterial comprising omega particles tailored to achieve the constitutive parameters desired. © 2018 IEEE
  6. Keywords:
  7. Bi-anisotropic media ; Backscattering ; Electromagnetic fields ; Magnetic anisotropy ; Mechanical permeability ; Permittivity ; Polarization ; Surface waves ; Tensile stress ; Tensors ; Anisotropic medium ; Constitutive parameters ; Electromagnetic behavior ; Magnetic polarizations ; Media ; Optical surface waves ; Permeability tensors ; Unidirectional waves ; Anisotropic media
  8. Source: IEEE Journal of Quantum Electronics ; Volume 54, Issue 6 , 2018 ; 00189197 (ISSN)
  9. URL: https://ieeexplore.ieee.org/document/8463607