Results 21 to 30 of about 506 (214)

Reprogrammable Metasurface Controlled by 2D Thermal Fields

Micromachines, 2022
The combination of thermal field sensing and microwave operation is an innovative topic in metamaterials. Although there exists research on modulating electromagnetic waves by controlling each column of the metasurface elements for programmable ...
Ming Zhang, Fuju Ye, Hongrui Tan, Sisi Luo, Haoyang Cui, Lei Chen   +5 more
doaj   +1 more source

Seven-channel nanoprinting and meta-holography based on metasurface-space and angular multiplexing

Results in Physics, 2023
Metasurfaces have emerged as crucial materials for optical information encryption and storage, lauded for their ease of operation and high programmability.
Fan Gao, Xin Zhou, Lu Tao Lu, Juan Deng, Bo Yan   +4 more
doaj   +1 more source

Hybrid Checkerboard Metasurface Combining Passive and Active AMCs [PDF]

Journal of Electromagnetic Engineering and Science
In this paper, a hybrid checkerboard metasurface is proposed for controlling radar cross-sections (RCSs) using a small number of active devices. The proposed metasurface consists of passive and active artificial magnetic conductors.
Sung Hoe Kim, Donghyun Kim, Chang-Hyun Lee, Young Joong Yoon   +3 more
doaj   +1 more source

Advances in optical metasurfaces: fabrication and applications [Invited]

Optics Express, 2018
The research and development of optical metasurfaces has been primarily driven by the curiosity for novel optical phenomena that are unattainable from materials that exist in nature and by the desire for miniaturization of optical devices. Metasurfaces constructed of artificial patterns of subwavelength depth make it possible to achieve flat, ultrathin
Vin-Cent Su, Cheng Hung Chu, Greg Sun, Din Ping Tsai   +3 more
openaire   +2 more sources

Wavefront Control of Millimeter Waves With a VO₂-Based Reconfigurable Meta-Reflectarray

IEEE Access, 2023
In this paper, a novel architecture of a reconfigurable metasurface is proposed and numerically assessed for wavefront control in wireless systems working in the millimeter-wave range.
Mohammad Ali Shameli, Antonio-D Capobianco, Luca Schenato, Marco Santagiustina, Domenico De Ceglia   +4 more
doaj   +1 more source

A metasurface composed of orifice-type unit cells for the redirection of acoustic waves

Scientific Reports, 2022
To implement a sound wave redirection system, a two-dimensional (2D) slice of a three-dimensional (3D) metasurface is designed and fabricated using a one-dimensional (1D) face-centred orifice cubic (FCOC) unit cell.
Choon Mahn Park, Geo-Su Yim, Sang Hun Lee   +2 more
doaj   +1 more source

Tunable Metasurfaces Based on Mechanically Deformable Polymeric Substrates

Photonics, 2023
The emergence of metamaterials has presented an unprecedented platform to control the fundamental properties of light at the nanoscale. Conventional metamaterials, however, possess passive properties that cannot be modulated post-fabrication, limiting ...
Elijah Effah, Ezekiel Edward Nettey-Oppong, Ahmed Ali, Kyung Min Byun, Seung Ho Choi   +4 more
doaj   +1 more source

UV-Nanoimprint and Deep Reactive Ion Etching of High Efficiency Silicon Metalenses: High Throughput at Low Cost with Excellent Resolution and Repeatability

Nanomaterials, 2023
As metasurfaces begin to find industrial applications there is a need to develop scalable and cost-effective fabrication techniques which offer sub-100 nm resolution while providing high throughput and large area patterning.
Christopher A. Dirdal, Karolina Milenko, Anand Summanwar, Firehun T. Dullo, Paul C. V. Thrane, Oana Rasoga, Andrei M. Avram, Adrian Dinescu, Angela M. Baracu   +8 more
doaj   +1 more source

Engineered substrates for metasurface antennas

Additive Manufacturing Letters
This letter explores the advantages of additively manufactured substrates with spatially varying electromagnetic properties. These engineered substrates will be constructed using space filling curves (SFC) of various orders.
Kelvin J. Nicholson, Ellen Gupta, Colin Bonner, Theodore Fessaras, Mark Mirotznik   +4 more
doaj   +1 more source

Thermally-curable nanocomposite printing for the scalable manufacturing of dielectric metasurfaces

Microsystems & Nanoengineering, 2022
Metasurfaces consisting of artificially designed meta-atoms have been popularized recently due to their advantages of amplitude and phase of light control.
Wonjoong Kim, Gwanho Yoon, Joohoon Kim, Heonyeong Jeong, Yeseul Kim, Hojung Choi, Trevon Badloe, Junsuk Rho, Heon Lee   +8 more
doaj   +1 more source