Journal
APPLIED PHYSICS LETTERS
Volume 122, Issue 23, Pages -Publisher
AIP Publishing
DOI: 10.1063/5.0143807
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We experimentally prove that a magnetic uniaxial wire medium lens composed of a racemic array of helical-shaped metallic wires can effectively transmit the normal component of the magnetic field of near-field sources with high resolution over a wide frequency range. This helical-shaped wire medium lens can be considered as the magnetic counterpart of traditional wire medium lenses formed by straight metallic wires. The experimental results are further confirmed through full-wave numerical simulations. We anticipate potential applications of this novel metamaterial lens in magnetic resonance imaging, near-field wireless power transfer, and sensing.
We experimentally verify that a magnetic uniaxial wire medium lens consisting of a racemic array of helical-shaped metallic wires may enable channeling the normal component of the magnetic field of near-field sources with resolution well below the diffraction limit over a broad bandwidth. It is experimentally demonstrated that the helical-shaped wire medium lens can be regarded as the magnetic counterpart of the usual wire medium lenses formed by straight metallic wires. The experimental results are validated with full-wave numerical simulations. We envision that the proposed metamaterial lens may have potential applications in magnetic resonance imaging, near-field wireless power transfer, and sensing.
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