Three novel refractive index (RI) sensors based on one, two, and three H-shaped cavities
(HCs) and metal–insulator–metal (MIM) waveguides are proposed in this paper. By coupling …

Fractal-shaped nanoantennas have a large potential to enable multiband devices for
surface-enhanced spectroscopy due to their scale-invariant geometry that gives rise to …

Metallic nanostructures that exhibit tailored optical resonances spanning from the near to
mid-infrared spectral range are of particular interest for spectroscopic and optical …

Fractals have emerged as a promising platform for realizing broadband absorption
metasurfaces. In this paper, we propose an ultra-broadband absorber with high absorption …

This paper demonstrates a microwave biosensor, based on the spoof surface plasmon
polaritions (SSPPs) excited by a planar plasmonic waveguide, which can measure in vivo …

The prospect of replacing damaged body parts with artificial implants is being transformed
from science fiction to science fact through the increasing application of electronics to …

A fractal metasurface-based ultra-broadband and high conversion efficiency reflective
polarization rotator (PR) is proposed. The linearly y-/x-polarized (LP) incident …

We present a new kind of perfect absorber which roots in a toroidal dipole resonance. The
toroidal metastructure consists of a metallic circular groove with a depth asymmetry, which …

In this report, using finite difference time domain simulation, a highly sensitive H-shape
subwavelength plasmonic metasurface is demonstrated for refractive index sensor at near …

Controlled assembly of retinal cells on artificial surfaces is important for fundamental cell
research and medical applications. We investigate fractal electrodes with branches of …