Enhanced optical absorption and electric field resonance in diabolo metal bar optical antennas.
Research
RF Safe Research Library
Jan 1, 2013
This engineering study investigates resonance behavior in diabolo metal bar optical antennas using FDTD numerical simulations and a dipole oscillator model. It reports that narrowing the antenna waist increases optical absorption and near-field enhancement at resonance and produces a red-shift in resonant…
Tunable optical antennas based on metallic nanoshells with nanoknobs.
Research
RF Safe Research Library
Jan 1, 2012
This engineering study investigates a plasmonic nanostructure composed of a spherical metallic nanoshell with a small metallic nanoparticle (“nanoknob”) on its surface. It reports tunable plasmon resonance behavior driven by nanoshell properties and localized/enhanced electromagnetic fields near the nanoknob under…