Fig. 6From: All-Dielectric Phase-Gradient Metasurface Performing High-Efficiency Anomalous Transmission in the Near-Infrared Regiona The total transmission efficiency and b the anomalous transmission efficiency as a function of the substrate thickness for the wavelength range of 1400–1600 nm. c The anomalous transmission efficiency of the proposed structure for different polarization angles in the wavelength range of 1400–1600 nm. d Calculated anomalous transmission efficiency at different values of the side length wBack to article page