Validation of electromagnetic field enhancement in near-infrared through Sierpinski fractal nanoantennas
Optics express, 2014•opg.optica.org
We introduced fractal geometry to the conventional bowtie antennas. We experimentally and
numerically showed that the resonance of the bowtie antennas goes to longer wavelengths,
after each fractalization step, which is considered a tool to miniaturize the main bowtie
structure. We also showed that the fractal geometry provides multiple hot spots on the
surface, and it can be used as an efficient SERS substrate.
numerically showed that the resonance of the bowtie antennas goes to longer wavelengths,
after each fractalization step, which is considered a tool to miniaturize the main bowtie
structure. We also showed that the fractal geometry provides multiple hot spots on the
surface, and it can be used as an efficient SERS substrate.
We introduced fractal geometry to the conventional bowtie antennas. We experimentally and numerically showed that the resonance of the bowtie antennas goes to longer wavelengths, after each fractalization step, which is considered a tool to miniaturize the main bowtie structure. We also showed that the fractal geometry provides multiple hot spots on the surface, and it can be used as an efficient SERS substrate.
opg.optica.org