scholarly journals The effects of three-dimensional defects on one-way surface plasmon propagation for photonic topological insulators comprised of continuum media

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
S. Ali Hassani Gangaraj ◽  
Andrei Nemilentsau ◽  
George W. Hanson
Keyword(s):  
Surface Plasmon ◽  
Surface Defects ◽  
Three Dimensional ◽  
Metal Loss ◽  
Surface Mode ◽  
Material Interfaces ◽  
Chern Numbers ◽  
Protected Surface ◽  
Backward Propagation ◽  
Plasmon Polaritons

Abstract We have investigated one-way surface plasmon-polaritons (SPPs) at the interface of a continuum magnetoplasma material and metal, in the presence of three-dimensional surface defects. Bulk electromagnetic modes of continuum materials have Chern numbers, analogous to those of photonic crystals. This can lead to the appearance of topologically-protected surface modes at material interfaces, propagating at frequencies inside the bandgap of the bulk materials. Previous studies considered two-dimensional structures; here we consider the effect of three-dimensional defects and show that, although backward propagation/reflection cannot occur, side scattering does take place and has significant effect on the propagation of the surface mode. Several different waveguiding geometries are considered for reducing the effects of side-scattering and we also consider the effects of metal loss.

Enhancement of scattering of surface plasmon polaritons by surface defects: Technique and results

2013 ◽  
Vol 115 (2) ◽  
pp. 264-273 ◽  
Author(s):  
V. A. Sterligov ◽  
Ya. A. Gritsaienko ◽  
Ya. Men ◽  
A. Savchenko
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Surface Defects ◽  
Plasmon Polaritons

scholarly journals Mapping the near-field spin angular momenta in the structured surface plasmon polariton field

Nanoscale ◽  
2020 ◽  
Vol 12 (25) ◽  
pp. 13674-13679
Author(s):  
C. C. Li ◽  
P. Shi ◽  
L. P. Du ◽  
X. C. Yuan
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polariton ◽  
Imaging Technique ◽  
Near Field ◽  
Three Dimensional ◽  
Experimental Result ◽  
Spin Component ◽  
Angular Momenta ◽  
Scanning Imaging ◽  
Plasmon Polaritons

An optical spin-resolved scanning imaging technique was proposed by which the normal to the interface spin component of surface plasmon polaritons can be mapped and the three-dimensional spin vector can be reconstructed with the experimental result.

Nanoscale chemical mapping using three-dimensional adiabatic compression of surface plasmon polaritons

2009 ◽  
Vol 5 (1) ◽  
pp. 67-72 ◽  
Author(s):  
Francesco De Angelis ◽  
Gobind Das ◽  
Patrizio Candeloro ◽  
Maddalena Patrini ◽  
Matteo Galli ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Three Dimensional ◽  
Adiabatic Compression ◽  
Chemical Mapping ◽  
Plasmon Polaritons

“Seeing” the Resonant SPP Modes Confined in Metal Nanocavity via Cathodoluminescne Spectroscopy

2014 ◽  
Vol 1659 ◽  
pp. 83-94
Author(s):  
Liu Chuanpu ◽  
Zhu Xinli ◽  
Zhang Jiasen ◽  
Xu Jun ◽  
Yu Dapeng
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Strong Field ◽  
Three Dimensional ◽  
Metal Nanostructures ◽  
Feature Size ◽  
Practical Applications ◽  
Plane Field ◽  
Out Of Plane ◽  
Plasmon Polaritons

ABSTRACT:Surface plasmon polaritons (SPPs), which are coupled excitations of electrons bound to a metal-dielectric interface, show great potential for application in future nanoscale photonic systems due to the strong field confinement at the nanoscale, intensive local field enhancement, and interplay between strongly localized and propagating SPPs. The fabrication of sufficiently smooth metal surface with nanoscale feature size is crucial for SPPs to have practical applications. A template stripping (ST) method combined with PMMA as a template was successfully developed to create extraordinarily smooth metal nanostructures with a desirable feature size and morphology for plasmonics and metamaterials. The advantages of this method, including the high resolution, precipitous top-to bottom profile with a high aspect ratio, and three-dimensional characteristics, make it very suitable for the fabrication of plasmonic structures. By using this ST method, boxing ring-shaped nanocavities have been fabricated and the confined modes of surface plasmon polaritons in these nanocavities have been investigated and imaged by using cathodoluminescence (CL) spectroscopy, which has been turned out to be a powerful means to characterize the resonant SPPs modes confined in metal nanocavities [1∼5] . The mode of the out-of-plane field components of surface plasmon polaritons dominates the experimental mode patterns, indicating that the electron beam locally excites the out-of-plane field component of surface plasmon polaritons. Quality factors can be directly acquired from the spectra induced by the ultrasmooth surface of the cavity and the high reflectivity of the silver (Ag) reflectors. Because of its three-dimensional confined characteristics and the omnidirectional reflectors, the nanocavity exhibits a small modal volume, small total volume, rich resonant modes, and flexibility in mode control. Numerous applications, such as plasmonic filter, nanolaser, and efficient light-emitting devices, can be expected to arise from these developments.

scholarly journals Unidirectional and diffractionless surface plasmon polaritons on three-dimensional nonreciprocal plasmonic platforms

2019 ◽  
Vol 99 (24) ◽  
Author(s):  
S. Ali Hassani Gangaraj ◽  
George W. Hanson ◽  
Mário G. Silveirinha ◽  
Kunal Shastri ◽  
Mauro Antezza ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Three Dimensional ◽  
Plasmon Polaritons
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