Antenna Design for Directivity-Enhanced Raman Spectroscopy
Figure 4
Radiation patterns of a dipole antenna on a glass substrate, dipole over ground plane, square waveguide nanoantenna (side length = 500 nm), circular waveguide nanoantenna (radius = 250 nm), and parabolic reflector nanoantenna. Calculated using far-field projections of 3D FDTD simulations, (a) xz plane, (b) yz plane.
