Antenna Design for Directivity-Enhanced Raman Spectroscopy
Figure 8
(a) Scanning electron microscopy image of Ag nanoprism. (b) A scanning ion microscope image of the paraboloid drilled on silicon taken directly from the FIB. (c) A 6 × 6 μm2 map of the Raman signal around a parabolic reflector nanoantenna.
