Magnifying perfect lens and superlens design by coordinate transformation

TL;DR

This paper introduces a coordinate transformation method to design anisotropic metamaterials that magnify 2D images beyond the diffraction limit, enabling applications in superlensing and lithography.

Contribution

It presents a novel design approach for perfect lenses and superlenses using oblate spheroidal coordinates for enhanced magnification.

Findings

Design of anisotropic metamaterials for superlensing

Magnification beyond diffraction limit achieved

Potential applications in lithography and imaging

Abstract

The coordinate transformation technique is applied to the design of perfect lenses and superlenses. In particular, anisotropic metamaterials that magnify two-dimensional planar images beyond the diffraction limit are designed by the use of oblate spheroidal coordinates. The oblate spheroidal perfect lens or superlens can naturally be used in reverse for lithography of planar subwavelength patterns.