Plasmons in ultra-thin gold slabs with quantum spill-out: Fourier modal method, perturbative approach, and analytical model

Taghizadeh, Alireza; Pedersen, Thomas Garm

doi:10.1364/oe.27.036941

Cited by 8 publications

(3 citation statements)

References 49 publications

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“…We emphasize that this concept of a spatially varying plasma frequency has found broad use, including Refs. [203,205,271,[276][277][278][279][280][281]. The idea of a smoothly varying profile has also been considerations of local-field corrections [282].…”

Section: Local-response Approximation With Equilibrium Electron-densi...mentioning

confidence: 99%

Mesoscopic electrodynamics at metal surfaces

Mortensen

2021

Nanophotonics

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Plasmonic phenomena in metals are commonly explored within the framework of classical electrodynamics and semiclassical models for the interactions of light with free-electron matter. The more detailed understanding of mesoscopic electrodynamics at metal surfaces is, however, becoming increasingly important for both fundamental developments in quantum plasmonics and potential applications in emerging light-based quantum technologies. The review offers a colloquial introduction to recent mesoscopic formalism, ranging from quantum-corrected hydrodynamics to microscopic surface-response formalism, offering also perspectives on possible future avenues.

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Section: Local-response Approximation With Equilibrium Electron-densi...mentioning

confidence: 99%

Mesoscopic electrodynamics at metal surfaces

Mortensen

2021

Nanophotonics

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“…Modified Fresnel coefficients are also an important part of surface HDM [30]; this model takes into account the so-called spill-out phenomenon, i.e. the fact that a non-zero electron density can flow out of the metal interface [31][32][33][34][35]. Some other nonlocal models of metal layers have also been published, focusing mainly on the analysis of the waveguide properties of these layers and the surface plasmon propagation [36,37].…”

Section: Introductionmentioning

confidence: 99%

Nonlocal response of the planar metal layer

Burda

Richter

Kwiecien

2023

Preprint

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Nonlocal interactions of plasmonic nanostructures are currently being intensively investigated. It is generally accepted that nonlocal interactions are most pronounced on structures with nanometer unit sizes and affect the shape of spectral functions of characterizing quantities in the resonance region. Numerical analysis of nonlocal phenomena is very complicated and it is advantageous to use it for the analysis of geometrically more complex structures. For some simple structures it is possible to find analytical solutions which can then be used, among other purposes, to build semi-analytical approaches for the analysis of some more complex structures. This article is focused on the efficient description of nonlocal manifestations of a planar metal layer using a hydrodynamic model. This model is further extended to the more general case of two adjacent nonlocal layers (bilayers). The results for both single layer and bilayer case are presented and discussed in detail. Also, one of the here presented important technical results are the transfer matrices for the nonzero normal component of the current densities at the interfaces of the metal layer.

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“…Modified Fresnel coefficients are also an important part of the surface HDM [30]; this model takes into account the socalled spill-out phenomenon, i.e. the fact that a non-zero electron density can flow out of the metal interface [31][32][33][34][35]. Some other nonlocal models of metal layers have also been published, focusing mainly on the analysis of the waveguide properties of these layers and the surface plasmon propagation [36,37].…”

Section: Introductionmentioning

confidence: 99%

Nonlocal response of planar plasmonic layers

Burda,

Richter,

Kwiecien

2023

Opt Quant Electron

View full text Add to dashboard Cite

Nonlocal interactions of plasmonic nanostructures are currently being intensively investigated. It is generally accepted that nonlocal interactions are most pronounced on structures with nanometer unit sizes and affect the shape of spectral functions of characterizing quantities in the resonance region. Numerical analysis of nonlocal phenomena is very complicated and it is advantageous to use it for the analysis of geometrically more complex structures. For some simple structures it is possible to find analytical solutions which can then be used, among other purposes, to build semi-analytical approaches for the analysis of some more complex structures. This article is focused on the efficient description of nonlocal manifestations of the planar plasmonic layers using a hydrodynamic model. The originality is particulary focused on the extension from the single nonlocal layer towards the more general case of two adjacent nonlocal layers (bilayers). The results for both single layer and bilayer case are presented and discussed in detail. Also, one of the here presented important technical results is the novel presentation of the transfer matrices for the nonzero normal component of the current densities at the interfaces of the plasmonic layer.

show abstract

Plasmons in ultra-thin gold slabs with quantum spill-out: Fourier modal method, perturbative approach, and analytical model

Cited by 8 publications

References 49 publications

Mesoscopic electrodynamics at metal surfaces

Mesoscopic electrodynamics at metal surfaces

Nonlocal response of the planar metal layer

Nonlocal response of planar plasmonic layers

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