Results 51 to 60 of about 43,771 (282)

Through Diamond Robust Surface Enhanced Raman Spectroscopy

open access: yesAdvanced Functional Materials, EarlyView.
Thin film diamond growth offers a unique opportunity for Surface Enhanced Raman Spectroscopy (SERS); the encapsulation of plasmonic nanostructures within a transparent, chemically stable, and physically robust coating. The diamond acts as both a window and protective layer, enabling illumination of the plasmonic nanostructures through the diamond ...
Kieran N. Twaddle   +4 more
wiley   +1 more source

Plasmonic Sensors: A New Frontier in Nanotechnology

open access: yesBiosensors, 2023
Plasmonics is the study of surface plasmons formed by the interaction of incident light with electrons to form a surface-bound electromagnetic wave [...]
Samir Kumar, Sungkyu Seo
doaj   +1 more source

Surface Plasmons and Topological Insulators

open access: yes, 2011
We study surface plasmons localized on interfaces between topologically trivial and topologically non-trivial time reversal invariant materials in three dimensions.
A. Otto, Andreas Karch, E. Kretschmann
core   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

open access: yesAdvanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He   +5 more
wiley   +1 more source

Partially coherent surface plasmon modes [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2011
Elementary long-range plasmon modes are described assuming an exponential dependence of the refractive index in the neighbourhood of the interface dielectric-metal thin film. The study is performed using coupling mode theory. The interference between two
Niconoff G. Martínez   +4 more
doaj   +1 more source

Electrical excitation of surface plasmons

open access: yes, 2011
We exploit a plasmon mediated two-step momentum downconversion scheme to convert low-energy tunneling electrons into propagating photons. Surface plasmon polaritons (SPPs) propagating along an extended gold nanowire are excited on one end by low-energy ...
Alexandre Bouhelier   +4 more
core   +1 more source

Surface plasmon wave plates [PDF]

open access: yesApplied Physics Letters, 2015
Here, we investigate both numerically and experimentally, the polarization conversion capabilities of a rectangular array of holes with two unequal orthogonal periodicities. We show that it is possible to tune the periodicities in such a way that the transmitted light is circularly polarized for a nominated wavelength, λCPL, when the structure is ...
Amir Djalalian-Assl   +4 more
openaire   +3 more sources

Bioinspired Stabilization of Fluorescent Au@SiO2 Tracers for Multimodal Biological Imaging

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates a bioinspired stabilization strategy for fluorescent gold‐silica nanoparticles. Inspired by natural biosilica maturation, high‐temperature calcination transforms the silica shells, preventing dissolution in cell culture media and intracellular environments.
Wang Sik Lee   +5 more
wiley   +1 more source

Characteristic energy loss of electrons in Mg with angle resolution

open access: yesPhysics of Complex Systems, 2020
The article discusses electron energy loss of bulk and surface plasmons in solid polycrystalline Mg films. The experimental study of the electrons’ characteristic energy loss is conducted and its results are compared in a wide range of electron incidence
Иосиф Исаакович Хинич   +1 more
doaj   +1 more source

Localized surface plasmons of gold nanoparticles

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2022
In this paper, gold nanoparticle far-field and near-field optical responses are studied and simulated numerically. The electromagnetic field was excited by an electric dipole near one end of the nanorod, which is used to model the emission of a quantum ...
al-khursan amin   +2 more
doaj   +1 more source

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