Detail publikačního výsledku

Charge reservoir as a design concept for plasmonic antennas

ŘEPA, R.; HORÁK, M.; ŠIKOLA, T.; KŘÁPEK, V.

Originální název

Charge reservoir as a design concept for plasmonic antennas

Anglický název

Charge reservoir as a design concept for plasmonic antennas

Druh

Článek WoS

Originální abstrakt

Plasmonic antennas exploit localized surface plasmons to shape, confine, and enhance electromagnetic fields with subwavelength resolution. The field enhancement is contributed to by various effects, such as the inherent surface localization of plasmons or the plasmonic lightning-rod effect. Inspired by nanofocusing observed for propagating plasmons, we test the hypothesis that plasmonic antennas with a large cross-section represent a large charge reservoir, enabling large induced charge and field enhancement. Our study reveals that a large charge reservoir is accompanied by large radiative losses, which are the dominant factor, resulting in a low field enhancement.

Anglický abstrakt

Plasmonic antennas exploit localized surface plasmons to shape, confine, and enhance electromagnetic fields with subwavelength resolution. The field enhancement is contributed to by various effects, such as the inherent surface localization of plasmons or the plasmonic lightning-rod effect. Inspired by nanofocusing observed for propagating plasmons, we test the hypothesis that plasmonic antennas with a large cross-section represent a large charge reservoir, enabling large induced charge and field enhancement. Our study reveals that a large charge reservoir is accompanied by large radiative losses, which are the dominant factor, resulting in a low field enhancement.

Klíčová slova

plasmonics, plasmonic antenna, electric near field

Klíčová slova v angličtině

plasmonics, plasmonic antenna, electric near field

Autoři

ŘEPA, R.; HORÁK, M.; ŠIKOLA, T.; KŘÁPEK, V.

Vydáno

18.12.2025

Nakladatel

Walter De Gruyter

Periodikum

Nanophotonics

Svazek

14

Číslo

25

Stát

Spolková republika Německo

Strany od

4637

Strany do

4645

Strany počet

9

URL

https://onlinelibrary.wiley.com/doi/epdf/10.1515/nanoph-2025-0421?getft_integrator=clarivate&src=getftr&utm_source=clarivate

BibTex

@article{BUT201778,
  author="Rostislav {Řepa} and Michal {Horák} and  {} and Tomáš {Šikola} and Vlastimil {Křápek}",
  title="Charge reservoir as a design concept for plasmonic antennas",
  journal="Nanophotonics",
  year="2025",
  volume="14",
  number="25",
  pages="4637--4645",
  doi="10.1515/nanoph-2025-0421",
  issn="2192-8606",
  url="https://onlinelibrary.wiley.com/doi/epdf/10.1515/nanoph-2025-0421?getft_integrator=clarivate&src=getftr&utm_source=clarivate"
}