Design and performance evaluation of orbital angular momentum metasurface for THz vortex waves generation based on fourier transform
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F25%3A10259344" target="_blank" >RIV/61989100:27240/25:10259344 - isvavai.cz</a>
Result on the web
<a href="https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2025.1702903/full" target="_blank" >https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2025.1702903/full</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3389/fphy.2025.1702903" target="_blank" >10.3389/fphy.2025.1702903</a>
Alternative languages
Result language
angličtina
Original language name
Design and performance evaluation of orbital angular momentum metasurface for THz vortex waves generation based on fourier transform
Original language description
Introduction: Because it is anticipated to be a new physical quantity for communication multiplexing and has significant potential for increasing channel capacity and enhancing spectrum resource utilization, researchers have been looking more closely at orbital angular momentum (OAM). Because of its potential to increase transmission capacity, vortex beams carrying orbital angular momentum (OAM) have recently become a focus of much investigation. One of the main challenges now is how to effectively manufacture OAM in the terahertz (THz) spectrum because existing THz vortex wave generation devices are constrained by only functioning at one frequency, having a small bandwidth, and having low conversion efficiency. Methods: Therefore, this paper proposes a novel OAM metasurface design for generating vortex electromagnetic waves in the THz spectrum. The Pancharatnam-Berry phase idea and the phase superposition principle were used to create a single-layer reflective metasurface and a projected ultra-wideband reflective meta-atom. Results and discussion: Each OAM mode in the reflected field was broken down using the Fourier transform, and the purity of the OAM modes was quantitatively examined. The dominant OAM mode had the highest energy weight share (l = −2) in all vortex waves at various frequencies, and the designed metasurface was further optimized to enhance the energy share corresponding to the dominant mode. With its high main mode energy, wide operating bandwidth, and excellent conversion efficiency, the proposed metasurface provides a benchmark for the effective production of wideband THz vortex waves. © © 2025 Nasimov, Prauzek, Konecny, Abdelhaq, Soto-Diaz, Escorcia-Gutierrez and Andriukaitis.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20202 - Communication engineering and systems
Result continuities
Project
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Continuities
O - Projekt operacniho programu
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Frontiers in Physics
ISSN
2296-424X
e-ISSN
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Volume of the periodical
13
Issue of the periodical within the volume
december 2025
Country of publishing house
CH - SWITZERLAND
Number of pages
14
Pages from-to
01-14
UT code for WoS article
001645275000001
EID of the result in the Scopus database
2-s2.0-105025648502