Coupling between Fano and Bragg bands in the photonic band structure of two- dimensional metallic photonic structures
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F16%3A00469627" target="_blank" >RIV/67985882:_____/16:00469627 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1103/PhysRevA.94.033845" target="_blank" >http://dx.doi.org/10.1103/PhysRevA.94.033845</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevA.94.033845" target="_blank" >10.1103/PhysRevA.94.033845</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Coupling between Fano and Bragg bands in the photonic band structure of two- dimensional metallic photonic structures
Popis výsledku v původním jazyce
The frequency and transmission spectrum of a two-dimensional array of metallic rods is investigated numerically. Based on the recent analysis of the band structure of two-dimensional photonic crystals with dielectric rods [Phys. Rev. A 92, 043814 (2015)], we identify two types of bands in the frequency spectrum: Bragg (P) bands resulting from a periodicity and Fano (F) bands which arise from Fano resonances associated with each of the cylinders within the periodic structure. It is shown that the existence of the Fano band in a certain frequency range is manifested by a Fano resonance in the transmittance. In particular, we reexamine the symmetry properties of the H-polarized band structure in the frequency range where the spectrum consists of the localized modes associated with the single-scatterer resonances and we explore the process of formation of Fano bands by identifying individual terms in the expansion of the linear combination of atomic orbitals states. We demonstrate how the interplay between the two scattering mechanisms affects the properties of the resulting band structure when the radius of cylinders is increased. We show that a different character of both kinds of bands is reflected in the spatial distribution of the magnetic field, which displays patterns corresponding to the corresponding irreducible symmetry representations
Název v anglickém jazyce
Coupling between Fano and Bragg bands in the photonic band structure of two- dimensional metallic photonic structures
Popis výsledku anglicky
The frequency and transmission spectrum of a two-dimensional array of metallic rods is investigated numerically. Based on the recent analysis of the band structure of two-dimensional photonic crystals with dielectric rods [Phys. Rev. A 92, 043814 (2015)], we identify two types of bands in the frequency spectrum: Bragg (P) bands resulting from a periodicity and Fano (F) bands which arise from Fano resonances associated with each of the cylinders within the periodic structure. It is shown that the existence of the Fano band in a certain frequency range is manifested by a Fano resonance in the transmittance. In particular, we reexamine the symmetry properties of the H-polarized band structure in the frequency range where the spectrum consists of the localized modes associated with the single-scatterer resonances and we explore the process of formation of Fano bands by identifying individual terms in the expansion of the linear combination of atomic orbitals states. We demonstrate how the interplay between the two scattering mechanisms affects the properties of the resulting band structure when the radius of cylinders is increased. We show that a different character of both kinds of bands is reflected in the spatial distribution of the magnetic field, which displays patterns corresponding to the corresponding irreducible symmetry representations
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
BH - Optika, masery a lasery
OECD FORD obor
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Návaznosti výsledku
Projekt
<a href="/cs/project/LD14028" target="_blank" >LD14028: Šíření povrchového plasmonu na grafenových metamateriálech v terahertzové frekvenční oblasti</a><br>
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2016
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Physical Review A
ISSN
2469-9926
e-ISSN
—
Svazek periodika
94
Číslo periodika v rámci svazku
3
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
10
Strana od-do
—
Kód UT WoS článku
000384059700007
EID výsledku v databázi Scopus
2-s2.0-84989234569