Numerical study of negative index material with low loss and polarization-independence in mid-infrared spectrum
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摘要:
We engineer numerically a negative index material (NIM) based on a square ring pairs (SRP) array and a thin wire net pairs (WNP).This metamaterial exhibits polarization-independence and low loss that is characterized by a figure of merit (FOM) up to 8.2 in mid-infrared spectrum.