Fig. 1: Schematic of the spin Hall effect of light (SHEL) and a dielectric metasurface to enhance the shift δ and efficiency ϵ of the SHEL simultaneously. | Nature Communications

Fig. 1: Schematic of the spin Hall effect of light (SHEL) and a dielectric metasurface to enhance the shift δ and efficiency ϵ of the SHEL simultaneously.

From: Reaching the highest efficiency of spin Hall effect of light in the near-infrared using all-dielectric metasurfaces

Fig. 1

a, b Illustration of the SHEL in previous demonstrations. The width of the transmitted beams denotes their intensities. a The efficient SHEL is limited by the small shift, b whereas the enhancement of the shift entails a low efficiency. c Large SHEL with high efficiency. d A metasurface that transmits x- and y-polarized incidence with unity amplitudes (∣tx∣ = ∣ty∣ = 1) but with the opposite phase (arg(tx) − arg(ty) = ± π).

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