Figure 5

Scattering cancellation by plasmonic nanostructure. (a) Scanning electron micrograph (SEM) of the silicon nanorod with gold nanograting fabricated on the side wall. (b) Near-field scanning optical micrograph (NSOM) of scattered light by the cloaked silicon nanorod measured with λ = 1550 nm. The fringe curvature contains the information on scattering cross section. (c) Scattering cross section extracted from the analysis of fringe curvatures. A reduction of 9.8 dB was achieved (From Ref. [78])

Scattering cancellation by plasmonic nanostructure. (a) Scanning electron micrograph (SEM) of the silicon nanorod with gold nanograting fabricated on the side wall. (b) Near-field scanning optical micrograph (NSOM) of scattered light by the cloaked silicon nanorod measured with λ = 1550 nm. The fringe curvature contains the information on scattering cross section. (c) Scattering cross section extracted from the analysis of fringe curvatures. A reduction of 9.8 dB was achieved (From Ref. [78]).