Refractive index mediated plasmon hybridization in an array of aluminium nanoparticles

A Muravitskaya, A Gokarna, A Movsesyan, S Kostcheev… - Nanoscale, 2020 - pubs.rsc.org
The arrangement of plasmonic nanoparticles in a non-symmetrical environment can feature
far-field and/or near-field interactions depending on the distance between the objects. In this …

Hybridization and dehybridization of plasmonic modes

A Movsesyan, A Muravitskaya, M Castilla… - The Journal of …, 2020 - ACS Publications
The plasmon resonances (modes) of a metal nanostructure can be defined as a dipole, a
quadrupole, or high-order modes depending on the surface charge distribution induced by …

Si@ Au core–shell nanostructures: Toward a new platform for controlling optical properties at the nanoscale

W Chaâbani, J Proust, S Ouellet… - The Journal of …, 2021 - ACS Publications
Hybrid dielectric–metal colloid nanoparticle heterostructures have recently attracted
attention in both fundamentals and applications. In this paper, we developed a new …

Plasmonic modes in cylindrical nanoparticles and dimers

CA Downing, G Weick - Proceedings of the Royal Society …, 2020 - royalsocietypublishing.org
We present analytical expressions for the resonance frequencies of the plasmonic modes
hosted in a cylindrical nanoparticle within the quasi-static approximation. Our theoretical …

Polarization switching between parallel and orthogonal collective resonances in arrays of metal nanoparticles

A Muravitskaya, A Movsesyan, S Kostcheev, PM Adam - JOSA B, 2019 - opg.optica.org
In this work, we discuss excitation of orthogonal and parallel collective resonances in
rectangular arrays of aluminum nanoparticles and switch between them with a change of …

Surface roughness and substrate induced symmetry-breaking: influence on the plasmonic properties of aluminum nanostructure arrays

F Zhang, J Plain, D Gérard, J Martin - Nanoscale, 2021 - pubs.rsc.org
The surface topography is known to play an important role on the near-and far-field optical
properties of metallic nanoparticles. In particular, aluminum (Al) nanoparticles are commonly …

Enhanced two-photon photoluminescence assisted by multi-resonant characteristics of a gold nanocylinder

A Movsesyan, G Lamri, S Kostcheev, A Horneber… - …, 2020 - degruyter.com
Multi-resonant plasmonic simple geometries like nanocylinders and nanorods are highly
interesting for two-photon photoluminescence and second harmonic generation …

Relative spectral tuning of the vertical versus base modes in plasmonic nanocones

J Fulmes, C Schäfer, DP Kern, PM Adam… - …, 2019 - iopscience.iop.org
Gold nanocones acting as optical antennas offer an excellent geometry for focusing light
near the cone tip, acting as nano-light sources with spot sizes on the order of the tip radius …

Selective triggering in-plane and out-of-plane dipolar modes of hexagonal Au nanoplate with the polarization of excitation beam

H Zhang, Q Wang, L Hou, F **ao… - Journal of Physics …, 2022 - iopscience.iop.org
The dipolar responses of a single hexagonal Au nanoplate are investigated under the
illuminations of linearly polarized beam and tightly focused radially polarized beam (RPB). It …

Enhanced Photocatalytic Activity and Photoluminescence of ZnO Nano-Wires Coupled with Aluminum Nanostructures

M Rtimi, N Beydoun, A Movsesyan, S Akil, S Kostcheev… - Nanomaterials, 2022 - mdpi.com
In this study, we fabricated a hybrid plasmonic/semiconductor material by combining the
chemical bath deposition of zinc oxide nanowires (ZnONWs) with the physical vapor …