Fig. 5: Measured results for beam scanning with N changed from 3.75 to 12.
From: Real-time programmable metasurface for terahertz multifunctional wave front engineering
a The wide-band beam scanning from 60° to 20° at 0.33–0.4 THz. b Comparison between the 1-D results extracted from a (blue curves) and simulations (red curves) at 0.34 THz. c The measured high-precision beam scanning with a 1° step length
