Two-dimensional left-handed metamaterial with a negative refractive index
Author
Aydın, Koray
Güven, Kaan
Özbay, Ekmel
Date
2006Source Title
Journal of Physics: Conference Series
Print ISSN
1742-6588
Publisher
IOP
Volume
36
Pages
6 - 11
Language
English
Type
Conference PaperItem Usage Stats
136
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107
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Abstract
We present a two-dimensional metamaterial with left-handed properties in a certain frequency range where both effective dielectric permittivity and magnetic permeability is simultaneously negative. A wedge-shaped metamaterial structure is employed for refractive index measurements. At the left-handed frequency range the structure is shown to have negative refractive index. Phase shift between consecutive number of layers of metamaterial structures are measured and a negative refractive index value is calculated from the amount of the phase shift. The structure is shown to have negative phase velocity. The refractive index values obtained from two different and independent methods are in good agreement.