Fig. 6: Measured results for dual-beam manipulations and diffuse scattering at 0.34 THz.
From: Real-time programmable metasurface for terahertz multifunctional wave front engineering

a The beam patterns with the dual-region coding combinations: N = 7/N = 4, N = 8/N = 5, and N = 9/N = 6, respectively. b The beam patterns with the convolutional coding combinations: N = 4.75*N = 32, N = 5.5*N = 32, and N = 12*N = 32, respectively. c The scattering-field patterns with the GRS coding sequences: P4, P5, P6, Q4, Q5, and Q6, respectively