Negative refraction and subwavelength focusing using left-handed composite metamaterials
Date
2008-01
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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.
Source Title
Proceedings - Photonic Crystal Materials and Devices - Integrated Optoelectronic Devices 2008
Publisher
SPIE
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Left-handed metamaterial, Metamaterials, Negative refractive index, Superlens, Magnetic permeability, Microwave frequencies, Permittivity, Refraction, Refractive index, Resonators, Computer networks, Light refraction, Materials science, Optics, Subwavelength focusing, Composite metamaterials, Left handed (LH), Left-handed metamaterials (LHM), Metamaterial structures, Metamaterials (MTM), Negative permeability, Negative permittivity, Negative refractions, Periodic arrays, Point sources, Split ring resonator (SRR), Subwavelength focussing, Super lens, Wire meshes, Composite materials, Electronic equipment
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English