Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/244604
COMPARTIR / EXPORTAR:
logo share SHARE logo core CORE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE

Invitar a revisión por pares abierta
Título

Evolution of plasmonic metamolecule modes in the quantum tunneling regime

AutorScholl, Jonathan A.; García-Etxarri, Aitzol CSIC ORCID CVN; Aguirregabiria, Garikoitz CSIC; Esteban, Ruben CSIC ORCID; Narayan, Tarun C.; Leen Koh, Ai; Aizpurua, Javier CSIC ORCID ; Dionne, Jennifer
Fecha de publicación2016
EditorAmerican Chemical Society
CitaciónACS Nano 2016 10(1): 1346–1354 (2016)
ResumenPlasmonic multinanoparticle systems exhibit collective electric and magnetic resonances that are fundamental for the development of state-of-the-art optical nanoantennas, metamaterials, and surface-enhanced spectroscopy substrates. While electric dipolar modes have been investigated in both the classical and quantum realm, little attention has been given to magnetic and other “dark” modes at the smallest dimensions. Here, we study the collective electric, magnetic, and dark modes of colloidally synthesized silver nanosphere trimers with varying interparticle separation using scanning transmission electron microscopy (STEM) and electron energy-loss spectroscopy (EELS). This technique enables direct visualization and spatially selective excitation of individual trimers, as well as manipulation of the interparticle distance into the subnanometer regime with the electron beam. Our experiments reveal that bonding electric and magnetic modes are significantly impacted by quantum effects, exhibiting a relative blueshift and reduced EELS amplitude compared to classical predictions. In contrast, the trimer’s electric dark mode is not affected by quantum tunneling for even Ångström-scale interparticle separations. We employ a quantum-corrected model to simulate the effect of electron tunneling in the trimer which shows excellent agreement with experimental results. This understanding of classical and quantum-influenced hybridized modes may impact the development of future quantum plasmonic materials and devices, including Fano-like molecular sensors and quantum metamaterials.
Versión del editorhttps://doi.org/10.1021/acsnano.5b06738
URIhttp://hdl.handle.net/10261/244604
DOI10.1021/acsnano.5b06738
ISSN1936-086X
Aparece en las colecciones: (CFM) Artículos




Ficheros en este ítem:
Fichero Descripción Tamaño Formato
accesoRestringido.pdf59,24 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo

CORE Recommender

SCOPUSTM   
Citations

48
checked on 27-mar-2024

WEB OF SCIENCETM
Citations

44
checked on 16-feb-2024

Page view(s)

55
checked on 28-mar-2024

Download(s)

6
checked on 28-mar-2024

Google ScholarTM

Check

Altmetric

Altmetric


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.