Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Optical response and spill-out effects of metal nanostructures with arbitrary shape

Not Accessible

Your library or personal account may give you access

Abstract

In this paper, we propose a simple model to incorporate the spill-out effect of metal nanostructures, which can impact the nanostructure plasmonic properties prominently. Based on Maxwell’s equations, this model divides the smeared-out area into a certain number of thinner layers, and thereby the spatial variable of dielectric function can be adjusted into an integer number. In principle, through the finite element method, the model can be applied to arbitrarily shaped metal nanostructures with spill-out effects. As demonstrative examples, the optical resonance spectra of sodium and potassium metal spheres were computed using the proposed model, and the redshifted plasmon peaks were attained and compared to previous research to support the model. Last, we successfully applied the proposed method to particles with lower symmetry relative to sphere particles, such as prolate spheroids and coned particles, and achieved redshift resonance with the consideration of spill-out layers.

© 2021 Optical Society of America

Full Article  |  PDF Article
More Like This
Optical response of noble metal nanostructures: quantum surface effects in crystallographic facets

A. Rodríguez Echarri, P. A. D. Gonçalves, C. Tserkezis, F. Javier García de Abajo, N. Asger Mortensen, and Joel D. Cox
Optica 8(5) 710-721 (2021)

Optical interactions with a charged metallic nanoshell

Tingting Bian, Railing Chang, and P. T. Leung
J. Opt. Soc. Am. B 33(1) 17-26 (2016)

Supplementary Material (1)

NameDescription
Supplement 1       Supplemental document.

Data Availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (9)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved