Double negative plasma-ferrite metamaterial with Voigt configuration

Abstract Double negative metamaterials (MM), with their extraordinary ability to manipulate electromagnetic (EM) waves, challenge conventional understanding of wave propagation and unlock a realm where the impossible becomes tangible. In this paper, we describe a new double negative MM composed of plasma and ferrite layers arranged in Voigt geometry. To this end, we derive the effective permittivity and permeability of our proposed structure by utilizing the long-wavelength approach, and employ matrix formalism to calculate the reflection and transmission coefficients. Our findings indicate that the characteristics of plasma-ferrite MM (PFMM) can be effectively tuned by adjusting the plasma number density, external magnetic field, thickness ratio of the layers, and the incident angle of the incoming wave. For instance, increasing the external magnetic field from 100 Oe to 500 Oe shifts the double-negative region frequency by approximately 9 GHz , resulting in a tuning efficiency of 0.022 GHz / Oe . We believe that these results may open up new possibilities for the development of compact wave manipulators and other innovative photonic devices.