Magnetic resonance in stratified metal-dielectric metamaterials

摘要

Effective magnetic permeability is investigated theoretically as well as experimentally for stratified metal dielectric metamaterial consisting of alumina (60nm)/Ag(30nm)/alumina (60nm) unit cells. The permeability calculated from complex transmission and reflection coefficients with the transfer matrix amounts to 20 just below the first photonic bandgap. Measurements with a Mach-Zehnder interferometer were found to be consistent with theoretical prediction.