Controlling Vector Bessel Beams with Metasurfaces

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Susceptibility Derivation and Experimental Demonstration of Refracting Metasurfaces Without Spurious Diffraction (2018, background): “They have already led to a diversity of applications, including single-layer perfect absorption [4], polarization twisting [5], power harvesting [6], orbital angular momentum multiplexing [7], [8], spatial processing [9], and flat lensing [10], and there seems to be much more to be discovered and de”
Arbitrary Power-Conserving Field Transformations With Passive Lossless Omega-Type Bianisotropic Metasurfaces (2016, background): “These so-called Huygens’ metasurfaces (HMSs) can be formed by properly aligning metallic wires and loops [11], [12], or, equivalently, utilizing symmetric three-layer stacks of electric impedance sheets [13], [14]; at optical frequencies, dielectric particles exhibiting simultaneous electric and mag”
A review of metasurfaces: physics and applications (2016, background): “(axicons) [55, 64] has been demonstrated by creating a linear phase gradient along the radial direction of the metasurface.”
Electromagnetic metasurfaces: physics and applications (2019, unknown): “(g) Schematic of a high-efficiency anisotropic Huygens’ metasurface for converting a circularly polarized Gaussian beam into a vector Bessel beam [328].”