Figure 6
From: Investigation of mechanism: spoof SPPs on periodically textured metal surface with pyramidal grooves

(a) c/vg changing with a2 when a1 = 0.4 mm. (b) c/vg changing with a1 when a2 = 0.4 mm.
From: Investigation of mechanism: spoof SPPs on periodically textured metal surface with pyramidal grooves
(a) c/vg changing with a2 when a1 = 0.4 mm. (b) c/vg changing with a1 when a2 = 0.4 mm.