Bound states in the continuum in waveguide arrays within a symmetry classification scheme

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F22%3A00565777" target="_blank" >RIV/67985882:_____/22:00565777 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26210/22:PU146577

Výsledek na webu

<a href="https://doi.org/10.1364/OE.464599" target="_blank" >https://doi.org/10.1364/OE.464599</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1364/OE.464599" target="_blank" >10.1364/OE.464599</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Bound states in the continuum in waveguide arrays within a symmetry classification scheme

Popis výsledku v původním jazyce

We study a photonic implementation of a modified Fano-Anderson model a waveguide array with two additional waveguides and by using the coupled mode theory we calculate its spectral and scattering properties. We classify eigenmodes according to vertical symmetry of the structure given by self-coupling coefficients of the additional waveguides and establish the conditions for bound states in the continuum (BIC) existence. The main predictions drawn from the theoretical model are verified by rigorous full-wave simulations of realistic structures. We use the Weierstrass factorization theorem and interpret the scattering spectra of the systems with broken symmetry in terms of the eigenmodes. The Fano resonance related with excitation of quasi-BIC is explained as arising from the interference between this mode and another leaky mode. (c) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

Název v anglickém jazyce

Bound states in the continuum in waveguide arrays within a symmetry classification scheme

Popis výsledku anglicky

We study a photonic implementation of a modified Fano-Anderson model a waveguide array with two additional waveguides and by using the coupled mode theory we calculate its spectral and scattering properties. We classify eigenmodes according to vertical symmetry of the structure given by self-coupling coefficients of the additional waveguides and establish the conditions for bound states in the continuum (BIC) existence. The main predictions drawn from the theoretical model are verified by rigorous full-wave simulations of realistic structures. We use the Weierstrass factorization theorem and interpret the scattering spectra of the systems with broken symmetry in terms of the eigenmodes. The Fano resonance related with excitation of quasi-BIC is explained as arising from the interference between this mode and another leaky mode. (c) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

<a href="/cs/project/GA19-00062S" target="_blank" >GA19-00062S: Pokročilé funkcionality v subvlnových fotonických a plazmonických strukturách</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Optics Express

ISSN

1094-4087

e-ISSN

—

Svazek periodika

30

Číslo periodika v rámci svazku

20

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

35712-35724

Kód UT WoS článku

000936928300003

EID výsledku v databázi Scopus

2-s2.0-85138449534