Analysis of Plasmonic Interactions in Nonlocal and Nanosnowman Structures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00367466" target="_blank" >RIV/68407700:21340/23:00367466 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1109/ICTON59386.2023.10207207" target="_blank" >https://doi.org/10.1109/ICTON59386.2023.10207207</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/ICTON59386.2023.10207207" target="_blank" >10.1109/ICTON59386.2023.10207207</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Analysis of Plasmonic Interactions in Nonlocal and Nanosnowman Structures

Popis výsledku v původním jazyce

Nonlocal interactions of plasmonic nanostructures are currently being intensively investigated. Nonlocal interactions are generally believed to be most noticeable in structures with unit dimensions of the order of nanometers and affect the shape of spectral functions characterizing quantities in the resonance region. However, the numerical analysis of nonlocal phenomena is very complicated. At first, we discuss the incorporation of a suitable hydrodynamic model into the Fourier modal method (FMM). This implementation is able to numerically analyze periodic plasmonic systems such as nonlocal periodic multilayers and resonant lattices. The implementation has been done in such a way that possible future generalization of the hydrodynamic nonlocal description as well as aperiodization of the technique (aFMM) will be possible. In the second part, this contribution deals with the analytical solution of the nonlocal process of a planar metal layer using a hydrodynamic model. This model is further extended to the more general case of two adjacent nonlocal layers (bilayers). Results for both the single-layer and the bilayer case are presented and discussed in detail. In the third part, in agreement with the growing scientific interest in nanoplasmonic structures, together with the increasing possibility of their fabrication using suitable nanotechnologies, and the current interest in various plasmonic-based sensors, we have further focused on the theoretical assessment of linear chains of several metallic nanospheres. By modifying the original design, new "nanosnowman" structures were obtained, and they were analyzed to maximize the resonance effect. We have effectively used our portfolio of simulation methods, based on both our own Fourier modal methods and commercial numerical tools. Selected promising results along with optimizations will be presented, enabling potential applications of resonances in sensors and other fields.

Název v anglickém jazyce

Analysis of Plasmonic Interactions in Nonlocal and Nanosnowman Structures

Popis výsledku anglicky

Nonlocal interactions of plasmonic nanostructures are currently being intensively investigated. Nonlocal interactions are generally believed to be most noticeable in structures with unit dimensions of the order of nanometers and affect the shape of spectral functions characterizing quantities in the resonance region. However, the numerical analysis of nonlocal phenomena is very complicated. At first, we discuss the incorporation of a suitable hydrodynamic model into the Fourier modal method (FMM). This implementation is able to numerically analyze periodic plasmonic systems such as nonlocal periodic multilayers and resonant lattices. The implementation has been done in such a way that possible future generalization of the hydrodynamic nonlocal description as well as aperiodization of the technique (aFMM) will be possible. In the second part, this contribution deals with the analytical solution of the nonlocal process of a planar metal layer using a hydrodynamic model. This model is further extended to the more general case of two adjacent nonlocal layers (bilayers). Results for both the single-layer and the bilayer case are presented and discussed in detail. In the third part, in agreement with the growing scientific interest in nanoplasmonic structures, together with the increasing possibility of their fabrication using suitable nanotechnologies, and the current interest in various plasmonic-based sensors, we have further focused on the theoretical assessment of linear chains of several metallic nanospheres. By modifying the original design, new "nanosnowman" structures were obtained, and they were analyzed to maximize the resonance effect. We have effectively used our portfolio of simulation methods, based on both our own Fourier modal methods and commercial numerical tools. Selected promising results along with optimizations will be presented, enabling potential applications of resonances in sensors and other fields.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

23rd International Conference on Transparent Optical Networks (ICTON)

ISBN

979-8-3503-0303-2

ISSN

2162-7339

e-ISSN

2161-2064

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

National Institute of Telecommunications

Místo vydání

Warsaw

Místo konání akce

Bucharest

Datum konání akce

2. 7. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—