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We present a theoretical study of the curvature-induced radiation of surface plasmon polaritons (SPPs) propagating around bends at metal-dielectric interfaces. We explain qualitatively how the curvature leads to distortion of the phase…

Optics · Physics 2009-11-13 Keisuke Hasegawa , Jens U. Noeckel , Miriam Deutsch

We introduce the unique class of propagation-invariant surface plasmon polaritons (SPPs) representing pulsed surface wave packets propagating along unpatterned metal-dielectric interfaces and are localized in all dimensions - with…

Formation of nanoscale laser-induced periodic surface structures on thin metal films (of the size of the optical penetration depth) is a yet unexplored area that is expected to open new routes for laser patterning and a wealth of exciting…

We present a new strategy, based on a Fresnel coefficient pole analysis, for designing an asymmetric multilayer structure that supports long range surface plasmons (LRSP). We find that the electric field intensity in the metal layer of a…

Optics · Physics 2013-07-17 Aida Delfan , J. E. Sipe

We demonstrate strong exciton-plasmon coupling in silver nanodisk arrays integrated with monolayer MoS2 via angle-resolved reflectance microscopy spectra of the coupled system. Strong exciton-plasmon coupling is observed with the…

Materials Science · Physics 2016-04-20 Wenjing Liu , Bumsu Lee , Carl H. Naylor , Ho-Seok Ee , Joohee Park , A. T. Charlie Johnson , Ritesh Agarwal

We offer a model to describe the intrinsic nonlinear response of surface plasmon polaritons (SPPs). Relation of the complex nonlinear coefficient of SPPs to the third-order nonlinear susceptibility of the metal is provided. As reported in a…

Optics · Physics 2015-02-11 Song-Jin Im , Gum-Song Ho , Gum-Hyok Kim

We present an overview of recent progress in plasmonics. We focus our study on the observation and excitation of surface plasmon polaritons (SPPs) with optical near-field microscopy. We discuss in particular recent applications of photon…

Optics · Physics 2007-11-19 A. Drezet , A. Hohenau , J. R. Krenn , M. Brun , S. Huant

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…

Mesoscale and Nanoscale Physics · Physics 2015-05-27 Palash Bharadwaj , Alexandre Bouhelier , Lukas Novotny

We use mono-crystalline gold platelets with ultra-smooth surfaces and superior plasmonic properties to investigate the formation of interference patterns caused by surface plasmon polaritons (SPPs) with scattering-type scanning near-field…

We investigated surface plasmon polariton (SPP) propagation in a metal-semiconductor-metal structure where semiconductor is highly excited to have optical gain. We show that near the SPP resonance, the imaginary part of the propagation…

Optics · Physics 2015-05-13 D. B. Li , C. Z. Ning

Multiple compound surface plasmon-polariton (SPP) waves can be guided by a structure consisting of a sufficiently thick layer of metal sandwiched between a homogeneous isotropic dielectric (HID) material and a dielectric structurally chiral…

The accurate calculation of laser energy absorption during femto- or picosecond laser pulse experiments is very important for the description of the formation of periodic surface structures. On a rough material surface, a crack or a step…

Applied Physics · Physics 2020-04-22 P. N. Terekhin , O. Benhayoun , S. T. Weber , D. S. Ivanov , M. E. Garcia , B. Rethfeld

Plasmonics has established itself as a branch of physics which promises to revolutionize data processing, improve photovoltaics, increase sensitivity of bio-detection. A widespread use of plasmonic devices is notably hindered (in addition…

Graphene supports surface plasmon polaritons (SPPs) with extreme field confinement and electrical tunability, but these waves are typically short-lived due to ohmic loss in the sheet. We show that embedding graphene in an active dielectric…

Optics · Physics 2026-03-24 Andrianos Sygrimis , Giorgos P. Tsironis

Assuming that the resonant surface plasmons on a spherical nanoparticle is formed by standing waves of two counter-propagating surface plasmon waves along the surface, by using Mie theory simulation, we find that the dispersions of surface…

Optics · Physics 2014-12-09 Yurui Fang , Xiaorui Tian

Surface plasmon polaritons (SSP), moving along a smooth curved interface between two isotropic media with slowly varying dielectric permittivities and magnetic permeabilities and supporting SSP, are studied theoretically. Solutions of…

Optics · Physics 2011-04-20 Maria V. Perel , Dmitry Yu. Zaika

Using a toy model, we examine the propagation of excitons in Cu$_2$O, which form localized pulses under certain experimental conditions. The formation of these waves is attributed to the effect of dispersion, non-linearity and the coupling…

Condensed Matter · Physics 2009-11-07 A. D. Jackson , G. M. Kavoulakis

Surface plasmon polariton is collective oscillation of the free electrons at metal dielectric interface. As a wave phenomenon, surface plasmon polaritons can be focused using appropriate excitation geometry of metallic structures. We…

Optics · Physics 2015-10-22 P. A. Golovinski , V. A. Astapenko , E. S. Manuylovich

The canonical boundary-value problem for surface-plasmon-polariton (SPP) waves guided by the planar interface of a dielectric material and a plasmonic material was solved for cases wherein either partnering material could be a uniaxial…

Optics · Physics 2019-09-18 Chenzhang Zhou , Tom G. Mackay , Akhlesh Lakhtakia

Monolayer (1L) transition metal dichalcogenides (TMDC) are of strong interest in nanophotonics due to their narrow-band intense excitonic transitions persisting up to room temperature. When brought into resonance with surface plasmon…