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Robust subnanometric plasmon ruler by rescaling of the nonlocal optical response

AutorTeperik, Tatiana V.; Nordlander, Peter; Aizpurua, Javier ; Borisov, Andrei G.
Fecha de publicación2013
EditorAmerican Physical Society
CitaciónPhysical Review Letters 110: 263901 (2013)
ResumenWe present the optical response of two interacting metallic nanowires calculated for separation distances down to angstrom range. State-of-the-art local and nonlocal approaches are compared with full quantum time-dependent density functional theory calculations that give an exact account of nonlocal and tunneling effects. We find that the quantum results are equivalent to those from classical approaches when the nanoparticle separation is defined as the separation between centroids of the screening charges. This establishes a universal plasmon ruler for subnanometric distances. Such a ruler not only impacts the basis of many applications of plasmonics, but also provides a robust rule for subnanometric metrology. © 2013 American Physical Society.
Versión del editorhttp://dx.doi.org/10.1103/PhysRevLett.110.263901
URIhttp://hdl.handle.net/10261/102519
DOI10.1103/PhysRevLett.110.263901
Identificadoresdoi: 10.1103/PhysRevLett.110.263901
issn: 0031-9007
e-issn: 1079-7114
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