Journal
APPLIED PHYSICS LETTERS
Volume 88, Issue 22, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2208264
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We introduce an improved and simplified structure made of periodic arrays of pairs of H-shaped metallic wires that offer a potentially simpler approach in building negative-index materials. Using simulations and microwave experiments, we have investigated the negative-index n properties of these structures. We have measured experimentally both the transmittance and the reflectance properties and found unambiguously that a negative refractive index with Re(n)< 0 and Im(n)< Re(n). The same is true for epsilon and mu. Our results show that H-shaped wire pairs can be used very effectively in producing materials with negative refractive indices. (c) 2006 American Institute of Physics.
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