Enhanced Broadband Manipulation of Acoustic Vortex Beams Using 3-bit Coding Metasurfaces through Topological Optimization.
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DOI: 10.1002/smll.202308349
Abstract: The acoustic coding metasurfaces (ACMs) have the ability to manipulate complex acoustic behavior by reconstructing the coding sequence. In particular, the design of broadband coding enhances the versatility of ACMs. ACMs offer significant advantages over… read more here.
Keywords: coding metasurfaces; broadband; acoustic vortex; bit coding ... See more keywords
Efficient manipulation of terahertz waves by multi-bit coding metasurfaces and further applications of such metasurfaces
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DOI: 10.1088/1674-1056/abd6fc
Abstract: Benefiting from the unprecedented superiority of coding metasurfaces at manipulating electromagnetic waves in the microwave band, in this paper, we use the Pancharatnam-Berry (PB) phase concept to propose a high-efficiency reflective-type coding metasurface that can… read more here.
Keywords: manipulation terahertz; bit coding; coding metasurfaces; terahertz waves ... See more keywords
An ultra-wideband 2-bit coding metasurface using Pancharatnam–Berry phase for radar cross-section reduction
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DOI: 10.1088/1674-1056/ac11ec
Abstract: An ultra-wideband 2-bit coding metasurface is designed for radar cross-section (RCS) reduction. The design process is presented in detail, in which a polarization conversion metasurface (PCM) is first proposed. The proposed PCM can realize ultra-wideband… read more here.
Keywords: metasurface; ultra wideband; coding metasurface; bit coding ... See more keywords
Broadband tunable coding metasurfaces based on a metal patch and graphene for beam control at the terahertz frequencies.
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DOI: 10.1364/ao.459343
Abstract: We present a broadband tunable coding metasurfaces structure using a cruciate metal patch and circular graphene on a multilayer substrate. By changing the Fermi level of the graphene, we can achieve obvious reflection phase variation… read more here.
Keywords: graphene; beam; control; bit coding ... See more keywords