Results 1 to 10 of about 1,149,214 (258)

Metasurface-based terahertz wideband linear polarization converter

open access: yesResults in Optics, 2023
We designed a linear polarization converter based on metasurface and simulated its functionality. It has a broad bandwidth and operates in the terahertz frequency range (0.4–1.2 THz).
Yuhan Zhao   +4 more
doaj   +1 more source

Methodology for High Purity Broadband Near-Unity THz Linear Polarization Converter and its Switching Characteristics

open access: yesIEEE Access, 2020
Terahertz (THz) polarization converter with high purity of linear polarization conversion, broader conversion band and near-unity conversion efficiency is one of the main research interests in the photonic field.
Jianguo Zhang   +3 more
doaj   +1 more source

Dual-band linear polarization converter based on multi-mode metasurface

open access: yesResults in Physics, 2022
This paper proposes a dual-band linear polarization converter based on multi-mode metasurface. The converter consists of square-patch-resonator-based metasurface etched with cross-slot, which is beneficial to separate the degenerate modes of the patch ...
Yueyang Wu   +6 more
doaj   +1 more source

Dual-pattern broadband polarization converter in THz band based on graphene and VO2 hybrid metasurface

open access: yesResults in Physics, 2023
We propose a dual-pattern broadband polarization converter in the terahertz band using a vanadium dioxide (VO2) and graphene metasurface. The converter can be switched between transmission and reflection patterns by controlling the phase of VO2.
Wenxuan Li   +9 more
doaj   +1 more source

Planar Polarity: Converting a Morphogen Gradient into Cellular Polarity [PDF]

open access: yesCurrent Biology, 2015
Epithelial cells are polarized within the apico-basal and planar axes. The latter - planar cell polarity - requires long-range regulation of orientation as well as short-range, cell-to-cell realignment through feedback loops. New insights into the long-range, gradient-type regulation reveal how a kinase translates the morphogen gradient input into ...
Collu, Giovanna M., Mlodzik, Marek
openaire   +2 more sources

A single-layer, wideband and angularly stable metasurface based polarization converter for linear-to-linear cross-polarization conversion

open access: yesPLoS ONE, 2023
In this article, a single-layer metasurface based reflector design is proposed for linear-to-linear cross-polarization conversion in microwave frequency range.
Aamir Rashid   +4 more
semanticscholar   +1 more source

Bandwidth broadening of a linear polarization converter by near-field metasurface coupling

open access: yesScientific Reports, 2017
We experimentally demonstrate a highly efficient, broadband linear polarization converter functioning at terahertz frequencies. The linear polarization converter is composed of three metasurfaces and two dielectric layers interlaced with each other.
Xi Gao   +5 more
doaj   +1 more source

Active Metasurface-Based Reconfigurable Polarization Converter With Multiple and Simultaneous Functionalities

open access: yesIEEE Antennas and Wireless Propagation Letters, 2023
We introduce a new concept of three-states polarization converting metasurface (TS-PCM) based on p-i-n diodes. The proposed structure can offer three distinct wave manipulation functionalities: linear polarization to orthogonal linear polarization (LP ...
Samiran Pramanik   +5 more
semanticscholar   +1 more source

A Metasurface-Based LTC Polarization Converter with S-Shaped Split Ring Resonator Structure for Flexible Applications

open access: yesSensors, 2023
This paper presents a metasurface-based linear-to-circular polarization converter with a flexible structure for conformal and wearable applications. The converter consists of nested S- and C-shaped split ring resonators in the unit cell and can convert ...
Erfeng Li   +4 more
doaj   +1 more source

Linear-polarization metasurface converter with an arbitrary polarization rotating angle

open access: yesOptics Express, 2021
This paper presents a new design of linear-polarization metasurface converter with arbitrary polarization rotating angle. The linear-polarization conversion is achieved by first separating the linearly polarized incident wave into two orthogonal circularly polarized waves, then adding an additional phase to one of the circularly polarized waves, and ...
Xiaoyi, Wang, Guo-Min, Yang
openaire   +2 more sources

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