Fig. 4: Structurally induced spectral control of chirality.
From: Controlling the broadband enhanced light chirality with L-shaped dielectric metamaterials

a Experimentally measured and b theoretically computed Kuhn’s dissymmetry factor spectra for different total thickness (dTOT) L-shaped metamaterial designs. c Computed amplitude (black star) and spectral location (hollow star) of maximum Kuhn’s dissymmetry values (gK,Max). The dotted and dashed lines are used to fit these results. d Schematic representation of one L-shaped nanopillar. In all these results, the rotation angle of the overhanging nanopillar subsegment is kept constant and equal to 38° while the total thickness values vary. Both pillar subsegments have equal lengths.