Abstract

The physics behind the spin (polarization)-dependent electromagnetic hot-spot phenomenon is due to the presence of the geometric phase resulting from the optical spin–orbit interaction in the interaction of light with the sub wavelength microstructures. Unlike the tiny spin-dependent shift of light associated with the usual spin–Hall effect of light, here we present the distinct polarization-dependent angular shift by employing an array of subwavelength metallic apertures. More importantly, this novel electromagnetic precession is accompanied by the extraordinary optical transmission phenomenon and offers the exciting possibilities for novel applications for subwavelength structured metallic systems.

© 2011 Optical Society of America

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