title: Exact modeling of cylindrical metal-dielectric multilayers beyond the effective medium approximation.
abstract: We present a semi-analytical method for accurate modeling of wave propagation in cylindrically symmetric subwavelength metal-dielectric multilayers. Utilizing a cylindrical transfer matrix method, we compute the amplitude transfer function of cylindrical hyperlens, simulate the exact field distribution and propagation for a given source and compare it to that in effective hyperbolic medium. We investigate the conditions under which the effective medium theory (EMT) is valid and show that in cylindrical configuration, a new degree of freedom is present in the applicability of the EMT-the ratio between the inner radius of the structure and the unit cell size.
authors.forename: Daniel
authors.initials: D
authors.lastname: Aronovich
authors.forename: Gal
authors.initials: G
authors.lastname: Bitan
authors.forename: Guy
authors.initials: G
authors.lastname: Bartal
mesh_terms: D017097:Electric Impedance; D008670:Metals; D008962:Models, Theoretical; D061848:Optical Imaging
chemical_list: D008670:Metals