Results 11 to 20 of about 80,934 (296)

A Triple-Band Reflective Polarization Conversion Metasurface with High Polarization Conversion Ratio for Ism and X-Band Applications [PDF]

open access: yesSensors, 2022
A compact and triple-band polarization converting reflective type metasurface (PCRM) with a high polarization conversion ratio (PCR) is proposed for strategic wireless antenna-integrated applications.
Badisa Anil Babu   +5 more
doaj   +2 more sources

Countering Single-Polarization Radar Based on Polarization Conversion Metamaterial [PDF]

open access: yesIEEE Access, 2020
Based on polarization conversion metamaterial, a novel method to counter single-polarization radar is proposed and discussed in this paper. Due to the resonance feature in the polarization conversion, energy attenuation and waveform distortion dual ...
Yueyu Meng   +5 more
doaj   +2 more sources

Reconfigurable broadband metasurfaces with nearly perfect absorption and high efficiency polarization conversion in THz range [PDF]

open access: yesScientific Reports, 2022
Reconfigurable metasurfaces (RMSs) that enable the switching function of absorption and polarization conversion have attracted increasing attention. However, the design of RMSs to achieve wideband and high efficiency for both absorption and polarization ...
Thi Minh Nguyen   +3 more
doaj   +2 more sources

Circular Polarization Conversion in Single Plasmonic Spherical Particles. [PDF]

open access: yesNano Lett, 2022
Temporal and spectral behaviors of plasmons determine their ability to enhance the characteristics of metamaterials tailored to a wide range of applications, including electric-field enhancement, hot-electron injection, sensing, as well as polarization ...
Khan P   +10 more
europepmc   +3 more sources

Polarization Conversion-Based Ambient Backscatter System [PDF]

open access: yesIEEE Access, 2020
In Ambient Backscatter Communications (AmBC), a backscatter device communicates by modulating the ambient radio frequency (RF) signal impinging at its antenna.
Jari Lietzen   +4 more
doaj   +3 more sources

Reciprocal Circular Polarization Handedness Conversion Using Chiral Metamaterials [PDF]

open access: yesIEEE Antennas and Wireless Propagation Letters, 2017
Chiral metamaterials (CMMs) are widely used to implement devices that transform the polarization of an incident electromagnetic wave, such as polarization rotators and linear to circular converters, but rarely used as circular polarization converters ...
OSCAR Fernández   +2 more
exaly   +2 more sources

Fast decomposed method to devise broadband polarization-conversion metasurface. [PDF]

open access: yesSci Rep, 2023
9 pags., 5 figs., 1 tab.Designing a broadband, wide-angle, and high-efficient polarization converter with a simple geometry remains challenging. This work proposes a simple and computationally inexpensive method for devising broadband polarization ...
Xiao X   +5 more
europepmc   +2 more sources

Polarization conversion with a photonic crystal slab

open access: yesJournal of the European Optical Society-Rapid Publications, 2008
We show that a photonic crystal can enable efficient polarization conversion. Two mechanisms are identified. The first relies on the anisotropy of the bulk properties of the metamaterial and is mediated by interferences. The second mechanism is dueto the
Vandenbem, Cedric   +11 more
core   +7 more sources

Multilayer Full Polarization Conversion Transpolarizing Structures [PDF]

open access: yesInternational Journal of Antennas and Propagation, 2019
In this paper, we propose the design of two perfect multilayered linear transpolarization structures working in transmission. These linear polarization converters are capable to rotate the polarization 90° independently from the direction of the input ...
Misagh Khosronejad   +2 more
doaj   +2 more sources

Complete asymmetric polarization conversion at zero-eigenvalue exceptional points of non-Hermitian metasurfaces [PDF]

open access: yesNanophotonics
Non-Hermitian systems can be tuned to exhibit exceptional points, where both eigenvalues and eigenstates coalesce concurrently. The inherent adaptability of photonic non-Hermitian systems in configuring gain and loss has allowed us to observe a plethora ...
Oh Donghak   +7 more
doaj   +2 more sources

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