Plasmonic Metasurface Resonators to Enhance Terahertz Magnetic Fields for High-Frequency Electron Paramagnetic Resonance
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F21%3APU142071" target="_blank" >RIV/00216305:26620/21:PU142071 - isvavai.cz</a>
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/10.1002/smtd.202100376" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/smtd.202100376</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/smtd.202100376" target="_blank" >10.1002/smtd.202100376</a>
Alternative languages
Result language
angličtina
Original language name
Plasmonic Metasurface Resonators to Enhance Terahertz Magnetic Fields for High-Frequency Electron Paramagnetic Resonance
Original language description
Nanoscale magnetic systems play a decisive role in areas ranging from biology to spintronics. Although, in principle, THz electron paramagnetic resonance (EPR) provides high-resolution access to their properties, lack of sensitivity has precluded realizing this potential. To resolve this issue, the principle of plasmonic enhancement of electromagnetic fields that is used in electric dipole spectroscopies with great success is exploited, and a new type of resonators for the enhancement of THz magnetic fields in a microscopic volume is proposed. A resonator composed of an array of diabolo antennas with a back-reflecting mirror is designed and fabricated. Simulations and THz EPR measurements demonstrate a 30-fold signal increase for thin film samples. This enhancement factor increases to a theoretical value of 7500 for samples confined to the active region of the antennas. These findings open the door to the elucidation of fundamental processes in nanoscale samples, including junctions in spintronic devices or biological membranes.
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
21001 - Nano-materials (production and properties)
Result continuities
Project
<a href="/en/project/GA20-28573S" target="_blank" >GA20-28573S: Localized plasmon-enhanced absorption upon strong coupling</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Small Methods
ISSN
2366-9608
e-ISSN
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Volume of the periodical
5
Issue of the periodical within the volume
9
Country of publishing house
DE - GERMANY
Number of pages
9
Pages from-to
2100376-2100376
UT code for WoS article
000678642700001
EID of the result in the Scopus database
2-s2.0-85111892545