Figure 7
From: Resonant nano-dimer metasurface for ultra-thin a-Si:H solar cells
(a) Scattering cross section of the optimum nano-dimer (see the geometrical parameters in table 2) dimer nanoaprticle (dimer element width GW=575nm, and gap 50 nm) made from \(\hbox {SiO}_{2}\) (red solid line with open circles), \(\hbox {TiO}_{2}\) (green solid line with open up triangles), and GaP ( blue solid line with open stars). The corresponding absorption cross section are shown as \(\hbox {SiO}_{2}\) (black solid line with closed circles), \(\hbox {TiO}_{2}\) (dark green solid line with closed up triangles), and GaP ( orange solid line with closed stars). (b) Spatial distribution of the normalized scattered electric field of the dimer for the three materials (GaP, \(\hbox {TiO}_2\), and \(\hbox {SiO}_2\)), for the two orthogonal planes of interest (XZ and YZ) at \(\lambda =650\) nm.
