  This paper makes evidence for direct dark mode excitation mechanism in a
metasurface structure. The dark mode excitation mechanism is entirely
determined by structures' symmetry and does not depend on near-field coupling
between elements. In our examples, we consider single element based metasurface
composed of two V antennas connected in an anti-symmetric arrangement. Both
experimental and modeling results show an efficient excitation of magnetic
dipolar mode in such structures. The direct dark mode excitation mechanism
provides a design that is more robust with respect to technology imperfections.
The considered approach opens promising perspectives for new type of
nanostructure designs and greatly relaxes fabrication constraints for the
optical domain.
