In this paper, we presented a compact resonator using a planar chiral fractal tree structure, where the chirality and the fractal form can combine several features at once. The chiral properties of this resonator, which are discussed based on their optical activity, circular dichroism, and the effect of the number of the iteration. Our chiral fractal structure is of major interest in scientific research, their characteristics have given rise to interesting new applications. Numerical results are given and discussed to confirm.
In this paper, the Comsol Multiphysics version 5.0 is used to study the effect of geometric parameters on transmission of chiral metamaterial nanostructures. The angle of the chiral metamaterial element was varied to see his effect. Transmission coefficient (S21) and reflection coefficient (S11) are computed. In the case of nano chiral metamaterial structure, and depending on the application, the electromagnetic behavior can be adjusted by changing the angle of the chiral element.
This paper is an attempt to compare the nonlinear chiroptical and non-reciprocity effects of bi-isotropic media. The nonlinearity used is of a Kerr type. Following the approach of Mezache–Benabdelaziz, recently new nonlinear effects are characterized in a bi-anisotropic medium, which is due to the magnetization vector under the influence of a strong electric field. We then use these results to present the solution of nonlinear Schrödinger equation in the general case of bi-isotropic (chiral and non-reciprocal). Numerical simulations were carried out, in order to confirm the effect of the nonlinear chiroptical and non-reciprocity on the propagation analysis.
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