Photonic spin-controlled multifunctional shared-aperture antenna array

doi:10.1126/science.aaf3417

Photonic spin-controlled multifunctional shared-aperture antenna array

2016-06-03

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DOI：10.1126/science.aaf3417

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Multifunction planar optics Specially designed two-dimensional (2D) arrays of nanometer-scale metallic antennas, or metasurfaces, may allow bulky optical components to be shrunk down to a planar device structure. Khorasaninejad et al. show that arrays of nanoscale fins of TiO can function as high-end optical lenses. At just a fraction of the size of optical objectives, such planar devices could turn your phone camera or your contact lens into a compound microscope. Maguid et al. interleaved sparse 2D arrays of metal antennas to get multifunctional behavior from the one planar device structure (see the Perspective by Litchinitser). The enhanced functionality of such designed metasurfaces could be used in sensing applications or to increase the communication capacity of nanophotonic networks. Science , this issue pp. 1190 and 1202 ; see also p. 1177

Photonic spin-controlled multifunctional shared-aperture antenna array

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