Results 31 to 40 of about 20,801 (233)

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

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

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

Conversion of a Helical Surface Plasmon Polariton into a Spiral Surface Plasmon Polariton at the Outlet of a Metallic Nanohole

open access: yesACS Omega, 2022
The conversion of a helical surface plasmon polariton (SPP) creeping out of a circular nanohole in a thick metal (Ag or Au) film into a spiral (Hankel type) SPP outward propagating at the film's interface is studied theoretically. The dispersion relations of SPPs of various modes in a nanohole, calculated from a transcendental equation, show that the ...
Yun-Cheng Ku   +3 more
openaire   +3 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

Dynamical Manipulation of Surface Plasmon Polaritons

open access: yesApplied Sciences, 2019
As the fundamental and promising branch of nanophotonics, surface plasmon polaritons (SPP) with the ability of manipulating the electromagnetic field on the subwavelength scale are of interest to a wide spectrum of scientists.
Sen Wang, Chunying Zhao, Xing Li
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 and Its Applications

open access: yesIEEE Photonics Journal, 2012
Surface plasmon polaritons (SPPs) have become one of the most rapidly expanding fields in photonics today. Exciting advances were made in research on SPPs in 2011. This review summarizes the significant progress and major achievements of super-resolution
Xiangang Luo, Lianshan Yan
doaj   +1 more source

Propagation of Terahertz Surface Plasmon Polaritons in a Dielectric Fiber with a Metal Wire Core

open access: yesFibers, 2022
The influence of the conductivity and radius of metal wires embedded into the dielectric fiber on the velocity and attenuation length of terahertz surface plasmon polaritons has been theoretically investigated.
Nikolai I. Petrov
doaj   +1 more source

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