Abstract
Hyperlenses based on metamaterials can be applied to subwavelength imaging in
the lightwave band. In this letter, we demonstrate both through simulations and
experimentally verified results that our proposed half-cylindrical shaped hyperlens
can be used for super-resolution microwave focusing in a TE mode. Based on split
ring resonators, the hyperlens satisfies a hyperbolic dispersion relationship.
Simulations demonstrate that the focused spot size and position are insensitive to
the rotation angle of the hyperlens around its geometric center. Experimental
results show that a focused spot size 1/3 of the vacuum wavelength is achieved in
the microwave band.
© 2014 Chinese Optics Letters
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