Results 21 to 30 of about 5,414 (280)

A review for antenna performance enhancement using metasurface structures [PDF]

open access: yesJournal of Engineering Science and Military Technologies, 2021
Metasurfaces (MS) have recently attracted a lot of attention due to theirability to manipulate electromagnetic characteristics. The metasurfaceis constructed from two-dimensional scatterers (metallic and dielectric)which provide simplicity in fabrication
Mohamed El-Sewedy, Mahmoud Abdalla
doaj   +1 more source

Pixel-level Bayer-type colour router based on metasurfaces

open access: yesNature Communications, 2022
Though metasurface-based 3D colour routers are attractive for next-generation colour imaging systems, their complex fabrication and poor performance remain a bottleneck.
Xiujuan Zou   +6 more
doaj   +1 more source

Review of Metasurfaces and Metadevices: Advantages of Different Materials and Fabrications

open access: yesNanomaterials, 2022
Flat optics, metasurfaces, metalenses, and related materials promise novel on-demand light modulation within ultrathin layers at wavelength scale, enabling a plethora of next-generation optical devices, also known as metadevices. Metadevices designed with different materials have been proposed and demonstrated for different applications, and the mass ...
Wei-Lun Hsu   +5 more
openaire   +3 more sources

Metasurface-based patterned wave plates for VIS applications

open access: yes, 2022
S.D97-D102We present the design and fabrication of metasurface-type patterned wave plates for VIS applications. The metasurface consists of a grating structure with periods much smaller than the addressed wavelength.
Stock, C., Siefke, T., Zeitner, U.
core   +1 more source

Metasurface Colloidal Quantum Dot Photodetectors

open access: yes, 2022
Efficient photodetectors that can be easily engineered for a specific spectral window are of high interest. Here, we report on the design, fabrication, and characterization of metasurface-enhanced photodetectors and photodiodes using colloidal quantum ...
Nuri Yazdani   +25 more
core   +2 more sources

Bio-Sensor Based on Trapped Mode All-Dielectric Metasurface Coated with Graphene Layer to Enhance Sensitivity

open access: yesIEEE Photonics Journal, 2021
All-dielectric metasurfaces have been widely used in nanophotonics because of their properties, such as negligible Ohmic loss, stable properties, and flexible fabrication techniques.
Xuesong Deng   +5 more
doaj   +1 more source

Light‐Controlled Fabrication of Disordered Hyperuniform Metasurfaces

open access: yesAdvanced Materials Technologies, 2022
AbstractDisordered hyperuniformity (DHU) is one of the most prominent manifestations of the engineered disorder, which aims to circumvent limitations commonly related to order. Considering the k‐space, isotropic DHU is characterized by an isotropic suppression of scattering for wavenumbers k approaching zero.
Ivan Shutsko   +3 more
openaire   +1 more source

An ultra-compact metasurface-based chromatic confocal sensor

open access: yes, 2023
Metasurfaces are planar optical elements that provide much greater freedom in manipulating light than conventional optics. This article explores the potential for miniaturised metasurface-based optical sensors.
Chan, Ho Tin   +5 more
core   +1 more source

Fabrication of a large scale metasurface with high resolution and enhanced absorption

open access: yes, 2023
Plasmonic metasurface nanostructures have the potential to enable nonlinear optical functionality in metasurfaces by reducing power operating thresholds and enabling ultra-thin subwavelength devices.
Nawi, Illani   +3 more
core   +1 more source

Advances in optical metasurfaces: fabrication and applications [Invited]

open access: yesOptics 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   +3 more
openaire   +2 more sources

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