Negative refraction and subwavelength focusing using left-handed composite metamaterials

Date
2008-01
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Source Title
Proceedings - Photonic Crystal Materials and Devices - Integrated Optoelectronic Devices 2008
Print ISSN
0277-786X
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Publisher
SPIE
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Pages
1 - 7
Language
English
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Abstract

We review experimental studies performed on left-handed metamaterials (LHM) at microwave frequencies. The metamaterial structure is composed of periodic arrays of split-ring resonators and wire meshes and exhibits a left-handed propagation band at frequencies of negative permittivity and negative permeability. Negative refraction is verified using prism shaped LHM and also by beam-shifting method. Subwavelength focusing of a point source is achieved with a resolution of 0.13λ, through a flat LHM superlens.

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