Results 21 to 30 of about 936 (152)

Two-plasmon spontaneous emission from a nonlocal epsilon-near-zero material

open access: yesCommunications Physics, 2021
Plasmonics involves the engineering of light-matter interactions and has range of possible uses in the study of quantum phenomenon, but efficient plasmonic sources are required.
Futai Hu   +5 more
doaj   +1 more source

Surface Plasmon Launching by Polariton Superradiance [PDF]

open access: yesACS Photonics, 2019
The condition of phase matching prohibits the transfer of excitation from free-space photons to surface plasmon polaritons (SPP). We propose and analyze a scheme that excites an ensemble of emitters in a collective state, which is phase matched with the SPP by the optical pulses used for its preparation. By a collective enhancement the ensemble, hence,
Yu-Xiang Zhang   +2 more
openaire   +2 more sources

One-Dimensional Plasmonic Sensors

open access: yesFrontiers in Physics, 2020
Recent advances in surface plasmon sensors have significantly reduced the limitations of conventional optical sensors. With the recent development of micro- and nano-fabrication technology, miniaturized one-dimensional structures become a promising ...
Yitian Liu   +3 more
doaj   +1 more source

Application of Tamm Plasmon Polaritons and Cavity Modes for Biosensing in the Combined Spectroscopic Ellipsometry and Quartz Crystal Microbalance Method

open access: yesBiosensors, 2021
Low-cost 1D plasmonic photonic structures supporting Tamm plasmon polaritons and cavity modes were employed for optical signal enhancement, modifying the commercially available quartz crystal microbalance with dissipation (QCM-D) sensor chip in a ...
Ieva Plikusienė   +5 more
doaj   +1 more source

Anisotropic excitation of surface plasmon polaritons on a metal film by a scattering-type scanning near-field microscope with a non-rotationally-symmetric probe tip

open access: yesNanophotonics, 2018
We investigated the excitation of surface plasmon polaritons on gold films with the metallized probe tip of a scattering-type scanning near-field optical microscope (s-SNOM). The emission of the polaritons from the tip, illuminated by near-infrared laser
Walla Frederik   +6 more
doaj   +1 more source

Experimental nanofocusing of surface plasmon polaritons using a gravitational field

open access: yesNanophotonics, 2020
How to capture electromagnetic fields into sub-wavelength spatial scales has been a major challenge in nanophotonics, especially confining surface plasmon polaritons into regions as small as a few nanometers.
Yan Zhiwei   +3 more
doaj   +1 more source

Resonant tunneling of surface plasmon-polaritons

open access: yesOptics Express, 2007
The tunneling of surface plasmon-polaritons (SPPs) across an interruption in the metallic film supporting them is numerically investigated in details. Both non-symmetrical and symmetrical geometries are considered. A very high tunneling efficiency is calculated for the long-range surface plasmon in the symmetrical geometry, with an amplitude ...
Sidorenko, Sergei, Martin, Olivier J. F.
openaire   +4 more sources

Ultrafast Surface-Plasmon Enhancement of Exciton and Defect Luminescence in ZnO Thin Films

open access: yesEPJ Web of Conferences, 2013
Femtosecond pump-probe and photoluminescence measurements in transmission and reflection show that ultraviolet band-edge and visible defect luminescence in ZnO films can be selectively enhanced by coupling to Ag surface-plasmon polaritons or localized ...
Haglund R. F., Mu R., Lawrie B.J.
doaj   +1 more source

Hidden symmetry protection for surface plasmon polaritons

open access: yesPhysical Review Research, 2023
In this study, we reveal the general mechanism of hidden symmetry protection for surface plasmon polaritons (SPPs). SPPs are protected at zero frequency when the dielectric-metal interface exhibits an exceptional symmetry.
Yosuke Nakata   +4 more
doaj   +1 more source

Surface plasmon polaritons in topological insulators [PDF]

open access: yesPhysical Review B, 2014
6 pages, 4 ...
Qi, Junjie, Liu, Haiwen, Xie, X. C.
openaire   +2 more sources

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