Perfect cloaking by shell with radially inhomogeneous chiral medium

This paper investigates the electromagnetic cloaking features of a spherical dielectric nanoparticle enclosed by a uniform shell of the inhomogeneous chiral medium. The cloaking characteristics were analyzed in terms of the effective permittivity of the nanoparticle. In this regard, effective permittivity was analyzed as a function of the chirality parameter, radial permittivity, and inhomogeneity parameter of the medium filling the shell. The results show the unit effective permittivity of the proposed core-shell nanoparticle attribute to the cloaking property.