Fig. 1From: Plasmonic Chiral Metasurface Absorber Based on Bilayer Fourfold Twisted Semicircle Nanostructure at Optical FrequencySchematic of the designed CMSA: a periodic array, b, c the front and perspective view of the unit-cell nanostructure. The periodic lengths along x- and y-axis directions are both 600 nm, and the normal incident CP lights are propagating along the z-axis directionBack to article page