Quantum Corrections in Nanoplasmonics: Shape, Scale, and Material

The classical treatment of plasmonics is insufficient at the nanometer-scale due to quantum mechanical surface phenomena. Here, an extension of the classical paradigm is reported which rigorously remedies this deficiency through the incorporation of first-principles surface response functions-the Fe...

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Bibliographic Details
Published in:Physical review letters 2017-04, Vol.118 (15), p.157402-157402, Article 157402
Main Authors: Christensen, Thomas, Yan, Wei, Jauho, Antti-Pekka, Soljačić, Marin, Mortensen, N Asger
Format: Article
Language:English
Subjects:
Damping
Derivation
Formalism
Mathematical analysis
Nanostructure
Noble metals
Optics
Physics
Plasmonics
Small scale
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Summary:The classical treatment of plasmonics is insufficient at the nanometer-scale due to quantum mechanical surface phenomena. Here, an extension of the classical paradigm is reported which rigorously remedies this deficiency through the incorporation of first-principles surface response functions-the Feibelman d parameters-in general geometries. Several analytical results for the leading-order plasmonic quantum corrections are obtained in a first-principles setting; particularly, a clear separation of the roles of shape, scale, and material is established. The utility of the formalism is illustrated by the derivation of a modified sum rule for complementary structures, a rigorous reformulation of Kreibig's phenomenological damping prescription, and an account of the small-scale resonance shifting of simple and noble metal nanostructures.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.118.157402