Electric field enhancement and far-field radiation pattern of the nanoantenna with concentric rings.
Research
RF Safe Research Library
Jan 1, 2014
This engineering study evaluates a nanoantenna design that combines concentric gold rings with a directivity-enhanced Raman scattering structure. Using finite-difference time-domain simulations and SERS measurements on fabricated devices with thiophenol, the authors report stronger electric field enhancement,…
Plasmonic array nanoantennas on layered substrates: modeling and radiation characteristics.
Research
RF Safe Research Library
Jan 1, 2009
This theoretical/engineering study models arrays of plasmonic core-shell nano-radiators positioned over layered substrates using a Green's function dipole approach. The model is validated with full-wave FDTD simulations. The authors report that nanoparticle arraying and multilayer substrate design can be used to…