Figure 3

The schematics of the double-stacked arrays of fishbone-shaped metallic structures. (a,b) The double-stacked arrays of fishbone-shaped metallic structures (a) and the unit cell (b). The structural parameters are schematically shown in (b).

The schematics of the double-stacked arrays of fishbone-shaped metallic structures. (a,b) The double-stacked arrays of fishbone-shaped metallic structures (a) and the unit cell (b). The structural parameters are schematically shown in (b).