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Electromagnetic metasurface
From Wikipedia, the free encyclopedia
An electromagnetic metasurface refers to a kind of artificial sheet material with sub-wavelength thickness. Metasurfaces can be either structured or unstructured with subwavelength-scaled patterns in the horizontal dimensions.[1][2][3]
![]() | This article provides insufficient context for those unfamiliar with the subject. (May 2015) |
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In electromagnetic theory, metasurfaces modulate the behaviors of electromagnetic waves through specific boundary conditions rather than constitutive parameters in three-dimensional (3D) space, which is commonly exploited in natural materials and metamaterials. Metasurfaces may also refer to the two-dimensional counterparts of metamaterials.[4][5] There are also 2.5D metasurfaces that involve the third dimension as additional degree of freedom for tailoring their functionality.[6]