A virtually flat metasurface is proposed and experimentally realized, which can split different visible-frequency light to completely different or even contrary directions with an ultrawide angular range (>90°). The phase gradients provided by the metasurface have been engineered to exhibit significant wavelength-selective features. The metasurface of mirror-symmetric arrays behaves as a convex, concave, and planar mirror for distinct light wavelengths.
No takes yet. Share an insight, caveat, or question.
Li et al. (2016) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: