Metasurfaces are ultrathin metamaterials consisting of planar electromagnetic (EM)
microstructures (eg, meta-atoms) with pre-determined EM responses arranged in specific …

Nano-apertures are known as interesting structures for biomedical sensing, spectroscopy,
optical imaging, and electrical field manipulating. Recently, different shapes of these …

We propose and numerically investigate a perfect ultra-narrowband absorber with an
absorption bandwidth of only 1.82 nm and an absorption efficiency exceeding 95% in the …

The structural characteristics of plasmonic nanostructures directly influence their plasmonic
properties, and therefore, their potential role in applications ranging from sensing and …

Deterministic fractal antennas are employed to realize multimodal plasmonic devices. Such
structures show strongly enhanced localized electromagnetic fields typically in the infrared …

Metasurfaces, as artificially patterned microstructures representing the ultrathin planar
version of metamaterials, have attracted growing attention due to their unprecedented …

Plasmonic nanostructures offer a great potential to enhance light-matter interaction at the
nanometer scale. The response upon illumination at a given wavelength and polarization is …

Currently simple and conventional structures are unable to meet increasingly critical and
diverse applications, as well as establishment of constitutive relationship of complex …

Controlled and reliable field enhancement (FE) effects associated with the excitation of
plasmons in resonant metal nanostructures constitute an essential prerequisite for the …

The perfect absorber with high figure of merit (FOM) and sensitivity for mid-infrared
application is developed in this study. The structure contains a nanoaperture as a resonator …