Matches in SemOpenAlex for { <https://semopenalex.org/work/W3089094582> ?p ?o ?g. }
- W3089094582 abstract "In recent years, metasurfaces have shown extremely powerful abilities for manipulation of electromagnetic waves. However, the local electromagnetic response of conventional metasurfaces yields to an intrinsic performance limitation in terms of efficiency, minimizing their implementation in real-life applications. The efficiency of reconfigurable metasurfaces further decreases because of the high density of meta-atoms, reaching 74 meta-atoms per $lambda^2$ area, incorporating lossy tunable elements. To address these problems, we implement strong electromagnetic non-local features in a textit{sparse} metasurface composed of electronically reconfigurable meta-atoms. As a proof-of-concept demonstration, a dynamic sparse metasurface having as few as $8$ meta-atoms per $lambda^2$ area is experimentally realized in the microwave domain to control wavefronts in both near-field and far-field regions for focusing and beam-forming, respectively. The proposed metasurface with its sparsity not only facilitates design and fabrication, but also opens the door to high-efficiency real-time reprogrammable functionalities in beam manipulations, wireless power transfer and imaging holography." @default.
- W3089094582 created "2020-10-01" @default.
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- W3089094582 date "2020-09-24" @default.
- W3089094582 modified "2023-10-14" @default.
- W3089094582 title "Non-local reconfigurable sparse metasurface: Efficient near-field and far-field wavefront manipulations." @default.
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