3-D metamaterials: Trends on applied designs, computational methods and fabrication techniques

A Alex-Amor, Á Palomares-Caballero, C Molero - Electronics, 2022 - mdpi.com
Metamaterials are artificially engineered devices that go beyond the properties of
conventional materials in nature. Metamaterials allow for the creation of negative refractive …

Analysis of metallic space-time gratings using Lorentz transformations

A Alex-Amor, C Molero, MG Silveirinha - Physical Review Applied, 2023 - APS
This paper presents an analytical framework for the study of scattering and diffraction
phenomena in space-time-modulated metallic gratings. Using a Lorentz transformation, it is …

Generalized equivalent circuit model for analysis of graphene/metal-based plasmonic metasurfaces using floquet expansion

M Pasdari-Kia, M Memarian, A Khavasi - Optics Express, 2022 - opg.optica.org
Due to the wide range of applications of metal/graphene-based plasmonic metasurfaces
(sensors, absorbers, polarizers), it has become essential to provide an analytical method for …

Analytical equivalent circuits for three-dimensional metamaterials and metagratings

A Alex-Amor, S Moreno-Rodríguez, P Padilla… - Physical Review …, 2023 - APS
Recently, three-dimensional (3D) metamaterials have undergone a revolution driven mainly
by the popularization of 3D-printing techniques, which has enabled the implementation of …

Time-periodic metallic metamaterials defined by floquet circuits

S Moreno-Rodríguez, A Alex-Amor, P Padilla… - IEEE …, 2023 - ieeexplore.ieee.org
In this paper, we study the scattering and diffraction phenomena in time-modulated
metamaterials of metallic nature by means of Floquet equivalent circuits. Concretely, we …

[HTML][HTML] Frequency Selective Surfaces: Design, Analysis, and Applications

W Afzal, MZ Baig, A Ebrahimi, MR Robel, MTA Rana… - Telecom, 2024 - mdpi.com
This paper aims to provide a general review of the fundamental ideas, varieties, methods,
and experimental research of the most advanced frequency selective surfaces available …

Diffraction phenomena in time-varying metal-based metasurfaces

A Alex-Amor, S Moreno-Rodríguez, P Padilla… - Physical Review …, 2023 - APS
This paper presents an analytical framework for the analysis of time-varying metal-based
metamaterials. Specifically, we particularize the study to time-modulated metal-air interfaces …

Graphene-based dual functional metadevice in the THz gap

S Kumar Ghosh, S Das, S Bhattacharyya - Applied Optics, 2021 - opg.optica.org
This paper presents a graphene-metal dual functional metadevice to provide two separate
applications simultaneously, viz., absorption and cross-polarization conversion (CPC) of the …

Variational-based approach to investigate Fano resonant plasmonic metasurfaces

M Pasdari-Kia, A Masihi, M Mohammadi, H Ahmadi… - Optics …, 2023 - opg.optica.org
Considering the widespread applications of resonant phenomena in metasurfaces to bend,
slow, concentrate, guide and manipulate lights, it is important to gain deep analytical insight …

Theory and Design of Space-Time Metallic Metasurfaces for Wireless Communications

S Moreno-Rodríguez, A Alex-Amor, P Padilla… - arXiv preprint arXiv …, 2023 - arxiv.org
This paper details a class of metal-based space-time metasurfaces for application in
wireless communications scenarios. Concretely, we describe space-time metasurfaces that …