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We reveal the existence of polarization-independent Fano resonances in one dimensional arrays of core-shell nanospheres which exhibit both electric and magnetic Mie resonances engineered to overlap spectrally with the same strength. The electric and magnetic Mie resonances can interfere simultaneously with the geometrical resonance (the so-called Wood's anomaly) of the periodic array, resulting in polarization-independent Fano resonances.

Plasmonics, Fano resonance.