Fig. 2From: Plasmonic Probe With Circular Nano-Moat for far-Field Free NanofocusingField intensity distribution variation with right slot radius. a–h Horizontal section at 5 nm below the probe apex, right slot radius caries from 1.50 to 2.2 μm. Normalized x- (i) and y-cuts (j) of the field intensity right below the probe apexBack to article page