Tunable Metasurfaces Based on Active Materials
Sign Up to like & getrecommendations! Published in 2019 at "Advanced Functional Materials"
DOI: 10.1002/adfm.201806692
Abstract: Metasurfaces, planer artificial materials composed of subwavelength unit cells, have shown superior abilities to manipulate the wavefronts of electromagnetic waves. In the last few years, metasurfaces have been a burgeoning field of research, with a… read more here.
Keywords: active materials; materials tunable; metasurfaces based; based active ... See more keywords
Highly Efficient, Tunable, Electro-Optic, Reflective Metasurfaces Based on Quasi-Bound States in the Continuum.
Sign Up to like & getrecommendations! Published in 2025 at "ACS nano"
DOI: 10.1021/acsnano.4c17030
Abstract: Ultrafast and highly efficient dynamic optical metasurfaces enabling truly spatiotemporal control over optical radiation are poised to revolutionize modern optics and photonics, but their practical realization remains elusive. In this work, we demonstrate highly efficient… read more here.
Keywords: metasurfaces based; quasi bound; based quasi; electro optic ... See more keywords
Low-loss metasurfaces based on discretized meta-atoms
Sign Up to like & getrecommendations! Published in 2024 at "Communications Physics"
DOI: 10.1038/s42005-024-01808-1
Abstract: Metasurfaces are established tools for manipulating light and enhancing light-matter interactions. However, the loss of conventional meta-atoms usually limits the performance potential of metasurfaces. In this study, we propose a class of metasurfaces based on… read more here.
Keywords: metasurfaces based; loss; meta; discretized meta ... See more keywords
Progress in metasurfaces based on Ge–Sb–Te phase-change materials
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Applied Physics"
DOI: 10.1063/5.0023925
Abstract: Recently, metasurfaces based on phase-change materials (PCMs) have attracted increasing attention due to the dramatic optical properties contrast between amorphous and crystalline states. The chalcogenide PCMs can be reversibly switched by electrical or optical pulses,… read more here.
Keywords: based phase; change materials; phase change; metasurfaces based ... See more keywords
Phase-Gradient Metasurfaces Based on Local Fabry–Pérot Resonances
Sign Up to like & getrecommendations! Published in 2020 at "Chinese Physics Letters"
DOI: 10.1088/0256-307x/37/9/097801
Abstract: In this work we present a new mechanism for designing phase-gradient metasurfaces (PGMs) to control an electromagnetic wavefront with high efficiency. Specifically, we design a transmission-type PGM formed by a periodic subwavelength metallic slit array… read more here.
Keywords: local fabry; based local; gradient metasurfaces; metasurfaces based ... See more keywords
Fast coding method of metasurfaces based on 1D coding in orthogonal directions
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Physics D: Applied Physics"
DOI: 10.1088/1361-6463/aae2fd
Abstract: Fast coding method of metasurfaces, based on 1D coding in orthogonal directions, is proposed in this paper. For the previous designed coding metasurfaces with M × N coding sequence, all the M × N codes… read more here.
Keywords: fast coding; orthogonal directions; method; coding method ... See more keywords
Coding Programmable Metasurfaces Based on Deep Learning Techniques
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Journal on Emerging and Selected Topics in Circuits and Systems"
DOI: 10.1109/jetcas.2020.2972764
Abstract: Programmable metasurfaces have recently been proposed to dynamically manipulate electromagnetic (EM) waves in both temporal and spatial dimensions. With active components integrated into unit cells of the metasurface, states of the unit cells can be… read more here.
Keywords: metasurfaces based; coding programmable; programmable metasurfaces; learning techniques ... See more keywords
Finite-Difference Modeling of Broadband Huygens’ Metasurfaces Based on Generalized Sheet Transition Conditions
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Antennas and Propagation"
DOI: 10.1109/tap.2017.2681323
Abstract: An explicit time-domain finite-difference technique for modeling zero-thickness Huygens’ metasurfaces based on generalized sheet transition conditions (GSTCs) is proposed and demonstrated using full-wave simulations. The Huygens’ metasurface is modeled using electric and magnetic surface susceptibilities,… read more here.
Keywords: based generalized; huygens metasurfaces; metasurfaces based; broadband ... See more keywords
Concept of non-periodic metasurfaces based on positional gradients applied to IR-flat lenses
Sign Up to like & getrecommendations! Published in 2017 at "Optical Materials Express"
DOI: 10.1364/ome.7.002346
Abstract: We describe a theoretical study of gradient metasurfaces that – unlike most theoretical designs requiring advanced fabrication techniques – could easily be produced by a simple patterning method, templated microlens lithography (TEMPL). We show here… read more here.
Keywords: periodic metasurfaces; concept non; non periodic; positional gradients ... See more keywords
Multifunctional Metasurfaces Based on the “Merging” Concept and Anisotropic Single-Structure Meta-Atoms
Sign Up to like & getrecommendations! Published in 2018 at "Applied Sciences"
DOI: 10.3390/app8040555
Abstract: Metasurfaces offer great opportunities to control electromagnetic (EM) waves, attracting intensive attention in science and engineering communities. Recently, many efforts were devoted to multifunctional metasurfaces integrating different functionalities into single flat devices. In this article,… read more here.
Keywords: merging concept; meta atoms; meta; metasurfaces based ... See more keywords
Design of Transparent Metasurfaces Based on Asymmetric Nanostructures for Directional and Selective Absorption
Sign Up to like & getrecommendations! Published in 2020 at "Materials"
DOI: 10.3390/ma13173751
Abstract: Maximizing the solar heat gain through windows in winter and minimizing the solar radiation entering the room in summer are of great significance for the energy saving of buildings. Here, we present a new idea… read more here.
Keywords: absorption; based asymmetric; selective absorption; directional selective ... See more keywords