Impedance-matched hyperlens

Alexander V. Kildishev, Birck Nanotechnology Center, Purdue University
Evgenii Narimanov, Purdue University

Date of this Version

December 2007

Citation

OPTICS LETTERS / Vol. 32, No. 23 / December 1, 2007

This document has been peer-reviewed.

 

Abstract

We propose an approach to optical imaging beyond the diffraction limit, based on transformation optics in concentric circular cylinder domains. The resulting systems allow image magnification and minimize reflection losses due to the impedance matching at the input or output boundaries. While perfect impedance matching at both surfaces can be obtained only in a system with radius-dependent magnetic permeability, we demonstrate that comparable performance can be achieved in an optimized nonmagnetic design.

 

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