Results 11 to 20 of about 4,482,554 (293)

SURFACE PLASMONS ON A RANDOMLY ROUGH SURFACE

open access: yesLe Journal de Physique Colloques, 1983
We have studied the dispersion relation for surface plasmons on a randomly rough surface, going beyond the lowest approximation in the surface profile function. The expansion of the surface plasmon dispersion relation in powers of the surface profile function contains an infinite subset of terms that are all of the same order of magnitude as the lowest
Farias, G., Maradudin, A.
openaire   +3 more sources

Unidirectional frequency conversion of surface plasmon polaritons on metal nanowires

open access: yesMicro and Nano Engineering, 2023
Hybrid nanoplasmonics is one of the most promising branch of nanophotonics which aims, in particular, to control the energy transfer between donor and acceptor nano-emitters via surface plasmons.
Aurélie Broussier   +10 more
doaj   +1 more source

A Horizontally Polarized Omnidirectional Antenna Based on Spoof Surface Plasmons

open access: yesFrontiers in Physics, 2020
As an analog of the role of surface plasmons in optical antenna, spoof surface plasmons enable far-field radiation of antenna at microwave frequencies.
Zhen Liao   +5 more
doaj   +1 more source

Surface Plasmons in Carbon Nanotubes with Elliptical Cross Section [PDF]

open access: yesЖурнал нано- та електронної фізики, 2017
The paper describes surface plasmons in metallic carbon nanotubes based on the complete system of Maxwell's equations. Dispersion relation for plasmons in nanotubes with an elliptic cross section has been obtained with the use of the boundary ...
A.V. Korotun   +2 more
doaj   +1 more source

Fluorescence Enhancement via Dual Coupling of Dye Molecules with Silver Nanostructures

open access: yesChemosensors, 2021
We demonstrate the enhancement of fluorescence emitted from dye molecules coupled with two surface plasmons, i.e., silver nanoparticles (AgNPs)-induced localized surface plasmons (LSP) and thin silver (Ag) film supported surface plasmons.
Vien Thi Tran, Heongkyu Ju
doaj   +1 more source

Electrically small multiband antenna based on spoof localized surface plasmons

open access: yesEPJ Applied Metamaterials, 2019
Here an electrically small multiband antenna based on spoof localized surface plasmons (LSPs) has been proposed using corrugated ring resonator printed on a thin dielectric substrate with complementary metallic spiral structure (MSS) on the ground plane.
Shao Rong Lin   +3 more
doaj   +1 more source

Principle and Applications of the Coupling of Surface Plasmons and Excitons

open access: yesApplied Sciences, 2020
Surface plasmons have been attracting increasing attention and have been studied extensively in recent decades because of their half-light and half-material polarized properties. On the one hand, the tightly confined surface plasmonic mode may reduce the
Zhicong He   +6 more
doaj   +1 more source

Surface effects on bulk plasmons [PDF]

open access: yesPhysical Review B, 1993
We discuss the effects of surfaces on bulk plasma oscillations in a metallic film of thickness $L$. The leading corrections to the plasma frequencies due to the surfaces are proportional to $L^{-1}$. dispersion relation of bulk modes, $ω=ω_p[1+α(q^2/k_F^2)] $, where the allowed $q$-values are $q^{(n)}=(nπ/\overline L)$, $\overline L\equiv L-2d_b$, and $
Heinonen, Olle, Kohn, Walter
openaire   +4 more sources

Investigation of surface plasmons in Kretschmann structure loaded with a silver nano-cube

open access: yesResults in Physics, 2019
A composite structure based on a Kretschmann structure loaded with silver nano-cube is proposed. A 442-nm laser was used to excite surface plasmons in the composite structure, and the electric field enhancement was numerically simulated using the finite ...
Xiangxian Wang   +4 more
doaj   +1 more source

Real-space imaging of acoustic plasmons in large-area graphene grown by chemical vapor deposition

open access: yesNature Communications, 2021
Acoustic graphene plasmons are superior to the graphene surface plasmons in field confinement and normalized propagation length, thus promising for applications.
Sergey G. Menabde   +10 more
doaj   +1 more source

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