Abstract

Since metamaterials have enabled the design of almost arbitrary landscapes of static optical properties and functionalities, dynamic temporal and spatial control over metamaterial properties has become the next big challenge. Recently, it has been demonstrated that the interaction of two coherent waves of arbitrarily low power on a metasurface can provide ultrafast control over the material excitation and thus over the expression of the nanostructure’s functionalities [1]. Here we report simultaneous spatial and temporal control of metasurface excitation including first proof-of-principle demonstrations of spatial mode multiplexing, image processing and logical operations.

© 2015 IEEE

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