Hannam, Kirsty; Powell, David A.; Shadrivov, Ilya V.; Kivshar, Yuri S.
We introduce a chiral metamaterial with strong, non-resonant optical
activity, and very low polarization ellipticity. We achieve this by combining a
meta-atom and its complementary structure into a meta-molecule, resulting in
the coupling of magnetic and electric dipole responses. In contrast to either a
pair of crosses, or complementary crosses, this structure has low dispersion in
the optical activity at the transmission resonance. We also study the
excitation mechanism in this...[Show more]
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