Abstract
Abstract
Simultaneous control of transmission amplitude and phase in optical regime has been theoretically demonstrated, employing a single-layer metal film milled with rectangular grooves and holes that are orthogonal to each other. By designing the configuration and sizes of nano-apertures, a single outgoing polarization with field transmission coefficient of ∼0.8 and transmission phase shift covering the full 2π range can be achieved. Moreover, with the phase gradient along the surface of super-cells consisting of six sub-units, anomalous positive and negative refraction with a high efficiency (∼60%) was suggested. This perforated metasurface may provide an alternative and efficient platform for controlling light.
Funder
National Natural Science Foundation of China
Subject
Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials
Cited by
1 articles.
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