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. 2020 Jul 23;23(8):101403. doi: 10.1016/j.isci.2020.101403

Figure 15.

Figure 15

Convolution Operations on Time-Domain Digital Coding Metasurface for Beam Manipulations of Harmonics

(A) Illustration of nonlinear convolution operations on harmonics to realize dual-beam scattering to arbitrary directions in the upper space.

(B–D) 1-bit case for nonlinear convolution operation.

(E–G) 2-bit case for nonlinear convolution operation.