Optical metasurfaces for generating and manipulating optical vortex beams
Optical vortices (OVs) carrying orbital angular momentum (OAM) have attracted
considerable interest in the field of optics and photonics owing to their peculiar optical …
considerable interest in the field of optics and photonics owing to their peculiar optical …
[HTML][HTML] Physics-driven tandem inverse design neural network for efficient optimization of UV–Vis meta-devices
This paper presents two tandemly stacked forward and inverse deep neural networks to
model and optimize cylindrical shaped transmissive meta-atoms for UV–Vis regime …
model and optimize cylindrical shaped transmissive meta-atoms for UV–Vis regime …
Ultraviolet–visible multifunctional vortex metaplates by breaking conventional rotational symmetry
Metasurfaces have shown remarkable potential to manipulate many of light's intrinsic
properties, such as phase, amplitude, and polarization. Recent advancements in …
properties, such as phase, amplitude, and polarization. Recent advancements in …
A unique physics-inspired deep-learning-based platform introducing a generalized tool for rapid optical-response prediction and parametric-optimization for all …
Metasurfaces are composed of a two-dimensional array of carefully engineered
subwavelength structures. They provide a novel compact alternative to conventional …
subwavelength structures. They provide a novel compact alternative to conventional …
Highly efficient perfect vortex beams generation based on all-dielectric metasurface for ultraviolet light
MD Shafqat, N Mahmood, M Zubair, MQ Mehmood… - Nanomaterials, 2022 - mdpi.com
Featuring shorter wavelengths and high photon energy, ultraviolet (UV) light enables many
exciting applications including photolithography, sensing, high-resolution imaging, and …
exciting applications including photolithography, sensing, high-resolution imaging, and …
[HTML][HTML] Ultrathin broadband metasurface-based absorber comprised of tungsten nanowires
An ultrathin broadband metasurface-based absorber, comprised of tungsten nanowires, was
studied under the normal and oblique incidence of transverse electric (TE) and transverse …
studied under the normal and oblique incidence of transverse electric (TE) and transverse …
Polarization-insensitive multi-band metamaterial absorber operating in the 5G spectrum
A polarization-insensitive multi-band metamaterial absorber comprised of four concentric
rectangular rib structures, mounted over a dielectric medium, was investigated. The …
rectangular rib structures, mounted over a dielectric medium, was investigated. The …
Deep-learning-enabled electromagnetic near-field prediction and inverse design of metasurfaces
Metasurfaces generate desired electromagnetic wavefronts using sub-wavelength structures
that are much thinner than conventional optical tools. However, their typical design method …
that are much thinner than conventional optical tools. However, their typical design method …
Generation of multi-channel perfect vortex beams with the controllable ring radius and the topological charge based on an all-dielectric transmission metasurface
Y Liu, C Zhou, K Guo, Z Wei, H Liu - Optics Express, 2022 - opg.optica.org
The perfect vortex (PV) beam, characterized by carrying orbital angular momentum and a
radial electric intensity distribution independent of the topological charge, has important …
radial electric intensity distribution independent of the topological charge, has important …
Bifunctional metamaterials using spatial phase gradient architectures: Generalized reflection and refraction considerations
O Danila, D Manaila-Maximean - Materials, 2021 - mdpi.com
We report the possibility of achieving normal-incidence transmission at non-normal
incidence angles using thin interfaces made of metasurface structures with an appropriately …
incidence angles using thin interfaces made of metasurface structures with an appropriately …