Results 101 to 110 of about 11,020 (243)

A Study on Optimal Design of Polarization-Independent Magneto-Metasurface Isolators Based on Multi-Material Topology Optimization

IEEE Photonics Journal
Metasurface has attracted a lot of attentions because they can realize properties that cannot be achieved with ordinary materials and are easy to be fabricated using established fabrication processes. In this paper, in order to design metasurface without
Mio Taniguchi, Akito Iguchi, Yasuhide Tsuji   +2 more
doaj   +1 more source

Versatile Standing Wave Generation Between Arbitrarily Oriented Surfaces Using Acoustic Metasurface Deflectors and Retroreflectors

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
A novel method for generating versatile standing wave fields using an acoustic metasurface deflector and retroreflector is introduced. By overcoming traditional constraints of parallel surfaces, the approach enables customizable wave patterns and enhances applications in particle manipulation.
Chadi Ellouzi, Farhood Aghdasi, Ali Zabihi, Amir K. Miri, Chen Shen   +4 more
wiley   +1 more source

Electrically tunable plasmonic metasurface as a matrix of nanoantennas

Nanophotonics
We report the fabrication and characterization of a plasmonic metasurface comprising electrically-contacted sub-wavelength gold dipole nanoantennas, conformally coated by a thin hafnia film, an indium tin oxide layer and a backside mirror, forming metal ...
Mayoral Astorga Luis Angel, Shabaninezhad Masoud, Northfield Howard, Ntais Spyridon, Rashid Sabaa, Lisicka-Skrzek Ewa, Mehrvar Hamid, Bernier Eric, Goodwill Dominic, Ramunno Lora, Berini Pierre   +10 more
doaj   +1 more source

Ultrafast all-optical tuning of direct-gap semiconductor metasurfaces

Nature Communications, 2017
Metasurfaces are not adjustable after fabrication, and a critical challenge is to realise a technique of tuning their optical properties that is both fast and efficient. Here, Shcherbakov et al.
Maxim R. Shcherbakov, Sheng Liu, Varvara V. Zubyuk, Aleksandr Vaskin, Polina P. Vabishchevich, Gordon Keeler, Thomas Pertsch, Tatyana V. Dolgova, Isabelle Staude, Igal Brener, Andrey A. Fedyanin   +10 more
doaj   +1 more source

Design of dual frequency antenna with gain enhancement effect for microwave power transmission [PDF]

AIP Advances
This paper proposes a method for enhancing antenna gain based on a zero-refractive-index metasurface, which can improve the gain of antennas under bending conditions and mitigate the gain reduction caused by deformation in flexible antennas.
Wenxiong Peng, Ning Luo, Jiazheng Yu, Huaiqing Zhang, Xin Wang, Hanchen Li   +5 more
doaj   +1 more source

Metasurfaces and Metadevices for Topological Electromagnetic Waves

Advanced Physics Research, EarlyView.
Optical topologies refer to diverse topological localized structures made by diverse parameters of light fields, such as vortices, skyrmions, and hopfions. This article navigates a direction of metasurface‐based integrated devices for generation, manipulation and detection of novel topologies of light, which would be a rapidly growing interdisciplinary
Rensheng Xie, Nilo Mata‐Cervera, Xi Xie, Yijie Shen   +3 more
wiley   +1 more source

Dual‐Wavelength Switchable Focusing via a Fabry‐Pérot Resonance‐Enabled Hydrogel Metalens

Advanced Physics Research, EarlyView.
A hydrogel metalens is demonstrated for dual‐wavelength switchable focusing based on Fabry‐Pérot resonance. Under the low relative humidity, the metalens exclusively focuses light with a resonance wavelength of 470 nm and directly reflects light of other wavelengths.
Xiaofeng Dong, Yufeng Zha, Tianyu Liu, Qijun Yan, Leyi Ren, Zhipeng Qian, Jiao Tang, Qianqian Zhou, Degao Xu, Wen‐xing Yang, Chenjie Dai   +10 more
wiley   +1 more source

Multifunctional Metasurfaces for Bridging Terahertz Waves in Free Space and Waveguides

Advanced Physics Research, EarlyView.
A multifunctional terahertz metasurface capable of simultaneous orthogonal polarization conversion and phase modulation is integrated onto a dielectric slab waveguide, thereby enabling efficient free‐space‐to‐guided‐wave coupling. By implementing tailored phase gradients on the metasurface, we demonstrate the formation of a focused spot within the ...
Jinhui Lu, Yushan Chen, Min Zhang, Hong Su, Ling Li, Huawei Liang   +5 more
wiley   +1 more source

Metalens‐Enabled Twisted Chromatic Dispersion

Advanced Physics Research, EarlyView.
We successfully demonstrate visible broadband twisted dispersion metalenses. As a proof of concept, we realized two distinct devices: the conical helical and the spring‐like dispersion‐controlled metalenses. These results rigorously validate the universality of our approach in customizing arbitrary continuous 3D dispersion trajectories, thereby ...
Shiyu Zheng, Boyan Fu, Hong Zhang, Shuming Wang   +3 more
wiley   +1 more source

Conception, fabrication and study of optical metasurfaces

, 2022
Optical metasurfaces are optical components composed of a set of nanostructures that interact strongly with light, thus considerably modifying its properties over a thickness smaller than the wavelength. They offer the advantage of creating flat, lightweight optics that can also combine several functionalities (wavefront modulation and polarization ...
openaire   +1 more source