title: Metamaterial endoscope for magnetic field transfer: near field imaging with magnetic wires.
abstract: We report on the development and use of a highly anisotropic magnetic metamaterial for near-field imaging. The material consists of an array of Swiss Roll structures, resonant near 21.3 MHz, with a peak value of relative permeability ~35. At this peak, the material transfers an input magnetic field pattern to the output face without loss of intensity and with a spatial resolution equal to the roll diameter. It behaves as a near-field imaging device consisting of a bundle of magnetic wires.
authors.forename: Michael
authors.initials: M
authors.lastname: Wiltshire
authors.forename: J
authors.initials: J
authors.lastname: Hajnal
authors.forename: J
authors.initials: J
authors.lastname: Pendry
authors.forename: D
authors.initials: D
authors.lastname: Edwards
authors.forename: C
authors.initials: C
authors.lastname: Stevens