Tunable Phase Retarder of 1D Layered Photonic Structure Combining Nonlinear Kerr Dielectric Defect Layers and Magnetized Plasma Materials

Abstract

In this article, through the optimized arrangement of the magnetized plasma, dielectric, and nonlinear Kerr dielectric, a tunable reflection phase retarder with a certain bandwidth is investigated. When the electric field of the incident electromagnetic wave is parallel to the xoy plane and has an angle of 45°with the x-axis, the electric field can be further decomposed into E x and E y along the xand y-axes, indicating TM and TE waves, respectively. The results show that under reasonable parameters, the 180°or −180°phase delay of the reflected wave of the proposed structure is obtained and adjusted. In particular, the nonlinear bistable response at this performance is also demonstrated. Furthermore, to verify the superiority of the obtained bandwidth of the phase retarder, the influences of the incident angle, the plasma frequency, the external magnetic field, and the nonlinear light intensity on the bandwidth of the phase retarder have been studied. It is observed that the total phase retarder bandwidth can reach 2.6 GHz by appropriately optimizing those parameters. Additionally, this work provides constructive suggestions for tunable broadband phase blockers and half-wave plates, and it still holds some potential significance in the radome.

Reconfigurable (4, 62) and (4, 82) Archimedean plasma photonic crystals in dielectric barrier discharge

“…As a tunable PC, it allows for fast reconfiguration and real-time control of the photonic bands. So far, different proposals have been proposed to realize PPCs, via artificial array of gas discharge tubes [15,16], by microplasma assemblies [17], by embedding dielectric arrays into plasma background [18,19], or via self-organization of discharge filaments as we previously reported [20][21][22]. More recently, novel layered structures combining the photonic crystal and the nonlinear plasmas have been suggested, which opened up a new way to produce tunable PPCs [23][24][25].…”

Cold plasma-induced effects on electromagnetic wave scattering in waveguides: a mode-matching analysis

“…The electromagnetic wave transmission from a lossless isotropic cylindrical waveguide with metallic walls to a semi-bounded plasma, using the mode-matching technique, has also been analyzed [38]. Rao et al [39] observed that the total phase retarder bandwidth can reach 2.6 GHz by appropriately optimizing the incident angle, the plasma frequency, the external magnetic field and the nonlinear light intensity.…”

Breakdown effect of periodic perturbations to the robustness of topological phase in a gyromagnetic photonic crystal

“…The consequence of this type of perturbation to topological transition should be vital in consideration of pragmatic manufacturing of topological PhC and thus worth our efforts to pinpoint the breakdown effect of topological protection. Here, we investigate whether such effects occur in the context of gyromagnetic PhC [3,[33][34][35][36], where randomness is brought uniformly within only the unit cells. In this study, we calculate the Chern numbers in our classical wave system to mark how the topological phases are influenced by periodic perturbation concretely.…”