Anisotropic behaviour and negative refraction in stacked subwavelength hole arrays metamaterials.
EuCAP 2010 - The 4th European Conference on Antennas and Propagation
Oblique incidence on a stack of subwavelength hole arrays wafers is analyzed both from simulation and measurement. A strong anisotropic behaviour is observed giving as a result that for P-polarized illumination, the refracted beam emerges at negative angles whereas for S-polarized illumination it is at positive angles. Two-dimensional dispersion diagrams are calculated to predict qualitatively the performance of the structure in terms of the refraction, which is subsequently demonstrated with experiments in the millimetre-wave range.
|Title:||Anisotropic behaviour and negative refraction in stacked subwavelength hole arrays metamaterials|
|UCL classification:||UCL > School of BEAMS > Faculty of Engineering Science > Electronic and Electrical Engineering|
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