Mode Profile Shaping in Wire Media: Towards An Experimental Verification

Abstract

Abstract:We show that an experimentally plausible system consisting of a modulated dielectric wire medium hosted in a metal cavity or waveguide can be used to shape the longitudinal field profile. In addition, a more realistic permittivity is used. These new frequency domain numerical results are a significant step towards justifying the construction of an experimental apparatus to test the field profile shaping in practise.

Wave Analysis and Homogenization of Spatiotemporally Modulated Wire Medium

“…Substantial spatial dispersion may be achieved also in different means e.g. in [45] where the authors utilized dielectric rods with different diameter instead of a constant loaded wire.…”

Electromagnetism, axions, and topology: A first-order operator approach to constitutive responses provides greater freedom

“…We can show that the existence of the axionic response terms enables the propagation of EM waves with a longitudinal component, as depicted on figure 3. Although achievable with the aid of artificial functional materials [35][36][37], or in an ordinary anisotropic (birefringent) medium, here we can do this with simple homogeneous constitutive properties. For example for a wave travelling in the ẑ-direction satisfying the dispersion relations…”