The influence of electron confinement, quantum size effects, and film morphology on the dispersion and the damping of plasmonic modes in Ag and Au thin films

Politano, Antonio; Chiarello, G.

doi:10.1016/j.progsurf.2014.12.002

Cited by 49 publications

(31 citation statements)

References 380 publications

(533 reference statements)

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“…Later on Electron Energy Loss Spectroscopy experiments have confirmed the presence of the ASP mode at the Be(0001) [5,6] and noble metal surfaces [7][8][9][10][11][12][13][14] in good agreement with calculations and graphene adsorbed on metal substrates [15][16][17][18][19][20][21][22]. In cases when surface localized quantum well states are formed, e.g.…”

Section: Introductionmentioning

confidence: 53%

Photoemission footprints of extrinsic plasmarons

Hellsing¹,

Silkin²

2015

Phys. Rev. B

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A prediction how to experimentally distinguish excitations of extrinsic plasmarons from intrinsic plasmarons is presented. In surface systems where excitations of acoustic surface plasmons is possible it is shown that the photo-electron yield in normal photoemission should decay according to an inverse square root dependence with respect to the photon energy. A computational analysis of the system p(2×2)-K/Graphite confirms this prediction.

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Section: Introductionmentioning

confidence: 53%

Photoemission footprints of extrinsic plasmarons

Hellsing¹,

Silkin²

2015

Phys. Rev. B

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“…3(c) and 3(d), these two branches are strongly coupled to each other with similar density peaks. For a closely located graphene layer from the surface, the measurement of plasmon dispersion and dissipations was reported in several recent papers [8][9][10][11][12] . It was discovered that if the separation becomes small enough, the lower plasmon branch is significantly damped when it enters the intraband particle-hole region.…”

Section: Numerical Results For Open Systemsmentioning

confidence: 99%

Plasmon dissipation in gapped graphene open systems at finite temperature

et al. 2016

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Numerical and closed-form analytic expressions for plasmon dispersion relations and rates of dissipation are first obtained at finite-temperatures for free-standing gapped graphene. These closedsystem results are generalized to an open system with Coulomb coupling of graphene electrons to an external electron reservoir. New plasmon modes, as well as new plasmon dissipation channels, are found in this open system, including significant modifications arising from the combined effect of thermal excitation of electrons and an energy bandgap in gapped graphene. Moreover, the characteristics of the new plasmon mode and the additional plasmon dissipation may be fully controlled by adjusting the separation between the graphene layer from the surface of a thick conductor. Numerical results for the thermal shift of plasmon frequency in a doped gapped graphene layer, along with its sensitivity to the local environment, are demonstrated and analyzed. Such phenomenon associated with the frequency shift of plasmons may be applied to direct optical measurement of local electron temperature in transistors and nanoplasmonic structures.

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“…[1][2][3][4] The SPPs originate from the coupling between the surface plasmon and electromagnetic field in artificial materials including metal or semiconductor constituents 5,6 Their great value of practical application brings about a new research field, the plasmonics. 7,8 Among MM structures, layered MMs composed of alternating metal and dielectric layers are the simplest examples. In this paper, we will seek for possible hybrid-polarization surface plasmonic polaritons at the interface between a layered metal-dielectric MM and an isotropic homogeneous dielectric in the framework of Dyakonov theory.…”

Section: Introductionmentioning

confidence: 99%

Diversiform hybrid-polarization surface plasmon polaritons in a dielectric–metal metamaterial

Zhang

Zhou

et al. 2017

AIP Advances

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Hybrid-polarization surface plasmon polaritons (HSPPs) at the interface between an isotropic medium and a one-dimensional metal–dielectric metamaterial (MM) were discussed, where the metal-layer permittivity was described with the improved Drude model. From the obtained dispersion equations, we predicated five types of HSPPs. One type is the Dyakonov-like surface polariton and another type is the tradition-like surface polarton. The others are new types of HSPPs. We establish a numerical simulation method of the attenuated total reflection (ATR) measurement to examine these HSPPs. The results from the ATR spectra are consistent with those from the dispersion equations and indicate the different polarization features of these HSPPs. The numerical results also demonstrate that the observation of each type of HSPPs requires different conditions dictated by the material parameters and the polarization direction of incident light used in the ATR spectra. These results may further widen the space of potential applications of surface plasmon polaritons.

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The influence of electron confinement, quantum size effects, and film morphology on the dispersion and the damping of plasmonic modes in Ag and Au thin films

Cited by 49 publications

References 380 publications

Photoemission footprints of extrinsic plasmarons

Photoemission footprints of extrinsic plasmarons

Plasmon dissipation in gapped graphene open systems at finite temperature

Diversiform hybrid-polarization surface plasmon polaritons in a dielectric–metal metamaterial

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