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Electromagnetic Coupling in Optical Devices Based on Random Arrays of Dielectric Nanoresonators

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cris.lastimport.scopus2024-02-12T20:35:11Z
dc.abstract.enHigh-index dielectric (HID) antennas are a promising alternative to realize low-loss optical devices. Practical devices require simultaneous activity of many antennas working in unison, where the manner in which the resonators are arranged may influence their behavior heavily. Here, we study how the optical properties of bottom-up created amorphous arrays with stochastic distribution of HID elements stem from an interplay of the single-particle response and mutual coupling. We develop a theoretical framework that incorporates electric and magnetic dipolar interactions to prove that interparticle coupling even in random arrays is a key aspect. These interactions are responsible for a number of density-driven (i.e., minimum center-to-center distance) effects such as modification of directional scattering, significant enhancements enabling HID sensing, or efficient solar harvesting. Our results give clear predictions and guidelines how to utilize intra-array coupling to maximize the efficiency of such HID devices.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorAntosiewicz, Tomasz
dc.contributor.authorCzajkowski, Krzysztof Michał
dc.date.accessioned2024-01-24T22:41:33Z
dc.date.available2024-01-24T22:41:33Z
dc.date.issued2020
dc.description.financePublikacja bezkosztowa
dc.description.number1
dc.description.volume124
dc.identifier.doi10.1021/ACS.JPCC.9B09430
dc.identifier.issn1932-7447
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/106001
dc.identifier.weblinkhttps://pubs.acs.org/doi/full/10.1021/acs.jpcc.9b09430
dc.languageeng
dc.pbn.affiliationphysical sciences
dc.relation.ispartofJournal of Physical Chemistry C
dc.relation.pages896-905
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleElectromagnetic Coupling in Optical Devices Based on Random Arrays of Dielectric Nanoresonators
dc.typeJournalArticle
dspace.entity.typePublication