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. 2019 Apr 24;9:6510. doi: 10.1038/s41598-019-42444-y

Figure 4.

Figure 4

(a) Scanning electron microscopy (SEM) image of fabricated 15-disk supercell based metasurfaces with 90 × 90 μm2 total size. (b) Experimental measurement of transmission spectra for zero and other orders. (c) The schematic of the measurement set-up to investigate the beam steering by far-field analysis. (d) The experimental investigation of the far-field profiles of the incident light intensity (top) and transmitted light intensity (bottom) captured by a CCD.