Jump to main content
Jump to site search

Issue 6, 2020
Previous Article Next Article

Broadband chiral hybrid plasmon modes on nanofingernail substrates

Author affiliations

Abstract

There is significant interest in the utility of asymmetric nanoaperture arrays as substrates for the surface-enhanced detection, fluorescence, and imaging of individual molecules. This work introduces obliquely-cut, out-of-plane, coaxial layered structures on an aperture edge. We refer to these structures as nanofingernails, which emphasizes their curved, oblique, and out-of-plane features. Broadband coupling into chiral hybrid plasmon modes and helicity-dependent near-field scattering without circular dichroism are demonstrated. The unusually-broadband, multipolar modes of nanofingernail micropore structures exhibit phase retardation effects that may be useful for achieving spatial overlap at different frequencies. The nanofingernail geometry shows new potential for simultaneous polarization-enhanced hyperspectral imaging on apertured, plasmonic surfaces.

Graphical abstract: Broadband chiral hybrid plasmon modes on nanofingernail substrates

Back to tab navigation

Supplementary files

Article information


Submitted
27 Aug 2019
Accepted
21 Jan 2020
First published
27 Jan 2020

Nanoscale, 2020,12, 3827-3833
Article type
Paper
Author version available

Broadband chiral hybrid plasmon modes on nanofingernail substrates

P. Librizzi, A. Biswas, R. Chang, X. Kong, M. Moocarme, G. Ahuja, I. Kretzschmar and L. T. Vuong, Nanoscale, 2020, 12, 3827
DOI: 10.1039/C9NR07394A

Social activity

Search articles by author

Spotlight

Advertisements