Journal
JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS
Volume 9, Issue 9, Pages S301-S307Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1464-4258/9/9/S04
Keywords
metamaterial; left-handed material; split-ring resonator; negative permeability; negative refraction; negative phase velocity; disorder; impedance matching
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We report the transmission characteristics of split-ring resonator and left-handed metamaterials (LHM) in the microwave frequency regime. A left-handed transmission band is observed at the frequencies where both dielectric permittivity and magnetic permeability are negative. The reflection characteristics of ordered and disordered LHMs are studied. The two-dimensional LHM structure is verified to have a negative refractive index. We employed three different methods to observe negative refraction: the beam shift method, refraction through wedge-shaped negative-index metamaterial, and phase-shift experiments.
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