Results 81 to 90 of about 36,989 (273)

Broadband polarization conversion with anisotropic plasmonic metasurfaces

Scientific Reports, 2017
Metasurfaces offer exciting opportunities that enable precise control of light propagation, optical intensity, phase and polarization. Plasmonic metasurface based quarter-wave plates have been recently studied to realize the conversion between linear ...
Wei Cao, Xiaodong Yang, Jie Gao
doaj   +1 more source

Experimental Verification of a Leaky-Wave Antenna Based on Bianisotropic Huygens’ Metasurface [PDF]

, 2019
—In this communication, the experimental verification of a leaky-wave antenna that uses a Huygens’ metasurface to have a control on the radiation parameters is addressed.
Abdo Sánchez, Elena, Chen, Michael, Eleftheriades, George V., Epstein, Ariel   +3 more
core  

Coupling of Er3+ ions and Plasmonic Modes in Vertical Nanocavities for Spectral Broadening in Telecom Bands

Advanced Materials Technologies, EarlyView.
Left: Illustration of the glass & nanostructures system and the NIR emission at 1.5 µm, where the colored spheres represent the Er3+ ions within the doped glass. Right: Representation of the Stark splitting of the 4I13/2 and 4I15/2 manifolds of the Er3+, illustrating how the plasmonic modes facilitate the emission from the broader Stark manifold ...
Gaston Lozano Calderón, Víctor Anthony García Rivera, Stéphan Cagnon, Souleymane Toubou Bah, Younès Messaddeq, Euclydes Marega Junior   +5 more
wiley   +1 more source

AI-Assisted Metasurface Antennas Design/Optimization and Performance Enhancement Techniques: A Comprehensive Survey

IEEE Access
Metasurface optimization employing evolutionary algorithms (EAs) for forward design and machine learning (ML) for inverse design has emerged as a rapidly developing field that uses artificial intelligence (AI) to design and optimize metasurface antenna ...
Mohamed Hamza Boulaich, Said Ohamouddou, Mohammed Ali Ennasar, Abdellatif El Afia   +3 more
doaj   +1 more source

Design of Multifunctional Tunable Metasurface Assisted by Elastic Substrate

Nanomaterials, 2022
Metasurfaces with both multifunctionality and tunability hold great application potential in next-generation optical devices. In this paper, we propose a stretchable metasurface composed of arrays of identical dielectric rectangular resonators embedded ...
Jing Li, Hongjie Fan, Han Ye, Tiesheng Wu, Yuhang Sun, Xueyu Wang, Yumin Liu   +6 more
doaj   +1 more source

Multi‐Dielectric Metasurfaces for Ultrabright, Tunable Structural Color and Reconfigurable Optical Filtering with Extraordinarily Large Color Span

Advanced Optical Materials, EarlyView.
Structural color generation is an emerging field for digital display and printing applications. This report presents a novel truncated‐cone design and the first use of GaP sandwiched between two layers of TiO2, demonstrating ultra‐bright, tunable colors with a record color gamut.
Md Rumon Miah, Yavuz Selim Aydın, Hilmi Volkan Demir   +2 more
wiley   +1 more source

Compact folded metasurface spectrometer [PDF]

Nature Communications, 2018
AbstractAn optical design space that can highly benefit from the recent developments in metasurfaces is the folded optics architecture where light is confined between reflective surfaces, and the wavefront is controlled at the reflective interfaces. In this manuscript, we introduce the concept of folded metasurface optics by demonstrating a compact ...
MohammadSadegh Faraji-Dana, Ehsan Arbabi, Amir Arbabi, Seyedeh Mahsa Kamali, Hyounghan Kwon, Andrei Faraon   +5 more
openaire   +5 more sources

Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering

Advanced Photonics Research, Volume 6, Issue 5, May 2025.
Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik, Fedor Kovalev, Mingkai Liu, Michal Zawierta, Dilusha Silva, Lorenzo Faraone, Mariusz Martyniuk, Ilya Shadrivov   +7 more
wiley   +1 more source

Theoretical study on dynamical planar-chirality switching in checkerboard-like metasurfaces

EPJ Applied Metamaterials, 2017
In this paper, we show that the handedness of a planar chiral checkerboard-like metasurface can be dynamically switched by modulating the local sheet impedance of the metasurface structure.
Urade Yoshiro, Nakata Yosuke, Nakanishi Toshihiro, Kitano Masao   +3 more
doaj   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source