Detail publikačního výsledku

Plasmonic Metasurface Resonators to Enhance Terahertz Magnetic Fields for High-Frequency Electron Paramagnetic Resonance

TESI, L.; BLOOS, D.; HRTOŇ, M.; BENEŠ, A.; HENTSCHEL, M.; KERN, M.; LEAVESLEY, A.; HILLENBRAND, R.; KŘÁPEK, V.; ŠIKOLA, T.; VAN SLAGEREN, J.

Originální název

Plasmonic Metasurface Resonators to Enhance Terahertz Magnetic Fields for High-Frequency Electron Paramagnetic Resonance

Anglický název

Plasmonic Metasurface Resonators to Enhance Terahertz Magnetic Fields for High-Frequency Electron Paramagnetic Resonance

Druh

Článek WoS

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

2D resonators; electron paramagnetic resonance; nanostructures; plasmonic metasurfaces; self-assembled monolayers; spintronics; thin layers

Klíčová slova v angličtině

2D resonators; electron paramagnetic resonance; nanostructures; plasmonic metasurfaces; self-assembled monolayers; spintronics; thin layers

Autoři

TESI, L.; BLOOS, D.; HRTOŇ, M.; BENEŠ, A.; HENTSCHEL, M.; KERN, M.; LEAVESLEY, A.; HILLENBRAND, R.; KŘÁPEK, V.; ŠIKOLA, T.; VAN SLAGEREN, J.

Rok RIV

2022

Vydáno

15.09.2021

Nakladatel

Wiley-VCH

Místo

WEINHEIM

ISSN

2366-9608

Periodikum

Small Methods

Svazek

5

Číslo

9

Stát

Spolková republika Německo

Strany od

2100376

Strany do

2100376

Strany počet

9

URL

https://onlinelibrary.wiley.com/doi/10.1002/smtd.202100376

Plný text v Digitální knihovně

http://hdl.handle.net/11012/203066

BibTex

@article{BUT173117,
  author="Lorenzo {Tesi} and Dominik {Bloos} and Martin {Hrtoň} and Adam {Beneš} and Mario {Hentschel} and Michal {Kern} and Alisa {Leavesley} and Rainer {Hillenbrand} and Vlastimil {Křápek} and Tomáš {Šikola} and Joris {van Slageren}",
  title="Plasmonic Metasurface Resonators to Enhance Terahertz Magnetic Fields for High-Frequency Electron Paramagnetic Resonance",
  journal="Small Methods",
  year="2021",
  volume="5",
  number="9",
  pages="2100376--2100376",
  doi="10.1002/smtd.202100376",
  issn="2366-9608",
  url="https://onlinelibrary.wiley.com/doi/10.1002/smtd.202100376"
}

Dokumenty

smtd.202100376