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Designing the Fourier space with transformation optics

By Jensen Li, Seunghoon Han, Shuang Zhang, Guy Bartal and Xiang Zhang

Abstract

We show that transformation optics can be applied to extend the functionalities of conventional optical devices. In particular, geometrically compressing the input facet of any conventional optical elements can extend the input spatial frequency bandwidth. As an example, we design a Fourier lens that can transform the image to its reciprocal space and operate for incident light of subwavelength profile. An explicit design employing metal–dielectric layers is given for realization. © 2009 Optical Society of America OCIS codes: 230.3205, 070.7345, 160.3918. Transformation optics (TO) with metamaterials permits the manipulation of the light flow at will by artificially reshaping the electromagnetic space, through the spatially inhomogeneous permittivity and permeability distribution [1,2]. It has led to the most compelling demonstration of an invisibility cloak at microwave frequencies [3]. Indeed, the implications of TO go beyond cloaking and provide a new paradigm in designing optical components. Recently

Year: 2009
OAI identifier: oai:CiteSeerX.psu:10.1.1.180.1939
Provided by: CiteSeerX
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