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Impact of Graphene on the Polarizability of a Neighbour Nanoparticle: A Dyadic Green’s Function Study

التفاصيل البيبلوغرافية
العنوان: Impact of Graphene on the Polarizability of a Neighbour Nanoparticle: A Dyadic Green’s Function Study
المؤلفون: B. Amorim, P. A. D. Gonçalves, M. I. Vasilevskiy, N. M. R. Peres
المصدر: Applied Sciences, Vol 7, Iss 11, p 1158 (2017)
بيانات النشر: MDPI AG, 2017.
سنة النشر: 2017
المجموعة: LCC:Technology
LCC:Engineering (General). Civil engineering (General)
LCC:Biology (General)
LCC:Physics
LCC:Chemistry
مصطلحات موضوعية: plasmonics, graphene, quantumemitter, dyadic Green’s function, nanoparticle, polarizability, Technology, Engineering (General). Civil engineering (General), TA1-2040, Biology (General), QH301-705.5, Physics, QC1-999, Chemistry, QD1-999
الوصف: We discuss the renormalization of the polarizability of a nanoparticle in the presence of either: (1) a continuous graphene sheet; or (2) a plasmonic graphene grating, taking into account retardation effects. Our analysis demonstrates that the excitation of surface plasmon polaritons in graphene produces a large enhancement of the real and imaginary parts of the renormalized polarizability. We show that the imaginary part can be changed by a factor of up to 100 relative to its value in the absence of graphene. We also show that the resonance in the case of the grating is narrower than in the continuous sheet. In the case of the grating it is shown that the resonance can be tuned by changing the grating geometric parameters.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2076-3417
Relation: https://www.mdpi.com/2076-3417/7/11/1158; https://doaj.org/toc/2076-3417
DOI: 10.3390/app7111158
URL الوصول: https://doaj.org/article/9ac592a1ae2747eba36c9430c2e512ca
رقم الأكسشن: edsdoj.9ac592a1ae2747eba36c9430c2e512ca
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20763417
DOI:10.3390/app7111158