Designing the Fourier space with transformation optics

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 tha...

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Bibliographic Details
Published in:Optics letters 2009-10, Vol.34 (20), p.3128-3130
Main Authors: JENSEN LI, SEUNGHOON HAN, SHUANG ZHANG, BARTAL, Guy, XIANG ZHANG
Format: Article
Language:English
Subjects:
Applied classical electromagnetism
Electromagnetic wave propagation, radiowave propagation
Electromagnetism
electron and ion optics
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Optical materials
Optics
Photonic bandgap materials
Physics
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Summary: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.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.34.003128