Taming the Electromagnetic Boundaries via Metasurfaces: From Theory and Fabrication to Functional Devices

Figure 35

(a) Schematic of the 2D elliptic antennas array. (b) SEM image of the elliptic antennas. (c) Measured power intensity profile of the focused field in the -plane. (d) The simulated (dashed lines) and measured (solid lines) intensity spectra of the focused field, respectively, along the -direction. (e) Schematic of the unit cell of rectangular aperture in metallic screen for holography. (f) Amplitude and phase transmission for various rotation angles. (g) SEM image of the sample. (h) Schematic of the measurement setup. Figures are reproduced from [201].

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