Planar hyperlens with homogeneous parameters based on linear optical transformation
School of Physical Science and Technology, Southwest University - Chongqing 400715, China
Received: 7 May 2014
Accepted: 8 July 2014
We propose a novel optical transformation method to design a planar hyperlens that is capable of realizing far-field plane-to-plane imaging beyond the diffraction limit. The lens, projecting sub-diffraction information to the far field through a magnification mechanism, is inherently homogeneous in Cartesian coordinates based on a linear optical transformation. The practical realization of such homogeneous hyperlens is suggested by using four kinds of isotropic materials throughout, which can be easily arranged in planarly stratified configuration; thus making the hyperlens much easier in fabrication and application. Full-wave simulation validates the far-field super-resolving performance of the proposed scheme, which is remarkably robust to the dissipative loss normally observed in metamaterials.
PACS: 42.30.Wb – Image reconstruction; tomography / 78.20.Ci – Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity)
© EPLA, 2014