Figure 4 | Light: Science & Applications

Figure 4

From: Information entropy of coding metasurface

Figure 4

Random coding metasurfaces at different diffusion states and their far-field patterns. (a) The initial state. (b) At the 50th iteration. (c) At the 99th iteration. (d) The geometrical and physical entropies at all iterations from 1 to 99. (i) Coding patterns. (ii) 2D polar far-field patterns. (iii) 3D far-field patterns.

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