Enlargement of the localized resonant band gap by using multi-layer structures

L Kong, L Zhu, Y Deng, X Fang - Journal of Computational Physics, 2024 - Elsevier
Multi-layer structures possess highly geometrically tunable optical resonances to change the
surface plasmon frequencies in the wide range. A simple analytic model is presented to …

Theory of hot-carrier generation in bimetallic plasmonic catalysts

H Jin, M Herran, E Cortés, J Lischner - ACS photonics, 2023 - ACS Publications
Bimetallic nanoreactors in which a plasmonic metal is used to funnel solar energy toward a
catalytic metal have recently been studied experimentally, but a detailed theoretical …

A Dual-Band Guided Laser Absorber Based on Plasmonic Resonance and Fabry-Pérot Resonance

X Liao, J Zeng, Y Zhang, X He, J Yang - Nanomaterials, 2022 - mdpi.com
We numerically investigated a dual-band metamaterial absorber based on the combination
of plasmonic resonance and Fabry–Pérot (FP) resonance, which can achieve near-unity …

Manipulating the quasi–normal modes of radially symmetric resonators

JR Capers, DA Patient, SAR Horsley - Optics Express, 2023 - opg.optica.org
The frequency response of a resonator is governed by the locations of its quasi-normal
modes in the complex frequency plane. The real part of the quasi–normal mode determines …

Topological visualization of the plasmonic resonance of a nano C-aperture

MA Zaman, W Ren, M Wu, P Padhy… - Applied Physics …, 2023 - pubs.aip.org
The plasmonic response of a nano C-aperture is analyzed using the Vector Field Topology
(VFT) visualization technique. The electrical currents that are induced on the metal surfaces …

Spontaneous emission enhancement by rotationally-symmetric optical nanoantennas: impact of radially and axially propagating surface plasmon polaritons

N Wang, Y Zhong, H Liu - Optics Express, 2022 - opg.optica.org
The excitation and radiation properties of rotationally-symmetric optical nanoantennas are
independent of the azimuth angle, which enables great convenience and superior …

Plasmonic properties of composition graded spherical nanoparticles in quasi-static approximation

A Galiautdinov, Y Zhao - Journal of Physics D: Applied Physics, 2023 - iopscience.iop.org
During the operation of a localized surface plasmon resonance (LSPR) sensor made in the
form of a core–shell nanoparticle with the shell acting as a sensing layer, the target …

Quadrature by Parity Asymptotic eXpansions (QPAX) for scattering by high aspect ratio particles

C Carvalho, A Kim, L Lewis, Z Moitier - Multiscale Modeling & Simulation, 2021 - SIAM
We study scattering by a high aspect ratio particle using boundary integral equation
methods. This problem has important applications in nanophotonics problems, including …