Plasmon Spectra of Nano-Structures: A Hydrodynamic Model

Villó-Pérez, Isidro; Mišković, Z. L.; Arista, N. R.

doi:10.1007/978-3-642-12070-1_10

Cited by 15 publications

(16 citation statements)

References 81 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The latter just appears in the nonlocal term on the right-hand side of eq , i.e., the one containing the gradient of the induced density. The hydrodynamic eq together with Maxwell’s equations defines a self-consistent problem that can be solved analytically for selected geometries and numerically by using, for instance, finite-element methods. ,,− …”

Section: The Hydrodynamic Approximationmentioning

confidence: 99%

Performance of Nonlocal Optics When Applied to Plasmonic Nanostructures

et al. 2013

View full text Add to dashboard Cite

Semi-classical non-local optics based on the hydrodynamic description of conduction electrons might be an adequate tool to study complex phenomena in the emerging field of nanoplasmonics. With the aim of confirming this idea, we obtain the local and non-local optical absorption spectra in a model nanoplasmonic device in which there are spatial gaps between the components at nanometric and sub-nanometric scales. After a comparison against time-dependent density functional calculations, we conclude that hydrodynamic non-local optics provides absorption spectra exhibiting qualitative agreement but not quantitative accuracy. This lack of accuracy, which is manifest even in the limit where induced electric currents are not established between the constituents of the device, is mainly due to the poor description of induced electron densities.

show abstract

Section: The Hydrodynamic Approximationmentioning

confidence: 99%

Performance of Nonlocal Optics When Applied to Plasmonic Nanostructures

et al. 2013

View full text Add to dashboard Cite

show abstract

“…The results for the SNL dispersion relation are shown by the dashed red curves. Comparing new results in the presence of quantum tunneling effects with results obtained in [31] for SNL model, one can observe that in the quantum nonlocal (QNL) model the surface modes are slightly red-shifted while the bulk modes are blue-shifted. Differences between the SNL model and the QNL model arise due to the gradient correction from the Bohm quantum potential in the latter model.…”

Section: Numerical Results and Discussionmentioning

confidence: 72%

“…In the absence of the quantum effects, i.e., Γ = 0 and β → 0, Eq. (12) becomes identical to the standard nonlocal (SNL) dispersion relation result in [31].…”

Section: Basic Theorymentioning

confidence: 59%

“…Furthermore, we should note that in the present work, the damping effects on plasmon modes have been neglected. This means that the range of validity of calculations may be characterized at long wavelengths, where 1 ≪ aω p /v F [31].…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

“…Thus, in the following we use the notation n = 0 for surface modes, and n = 1, 2, …, for bulk modes. We should note here that if ℓ = 0 the surface mode is not possible [31], while for bulk modes the situation is different and there is an infinite number of bulk modes (n = 1, 2, 3, …) corresponding to imaginary values of γ ± . In the absence of the quantum effects, i.e., Γ = 0 and β → 0, Eq.…”

Section: Basic Theorymentioning

confidence: 96%

See 2 more Smart Citations

Plasmon modes of spherical nanoparticles: The effects of quantum nonlocality

Moradi

2015

Surface Science

View full text Add to dashboard Cite

Appropriate Nonlocal Hydrodynamic Models for the Characterization of Deep‐Nanometer Scale Plasmonic Scatterers

Kupresak

Zheng

Vandenbosch

et al. 2019

Advcd Theory and Sims

View full text Add to dashboard Cite

The interaction between light and plasmonic systems with deep‐nanometer characteristics, which is essentially governed by quantum mechanical effects, has been extensively studied by the nonlocal hydrodynamic approach. Several hydrodynamic models, supplemented by additional boundary conditions, have been introduced in order to describe the collective motion of the free electron gas in metals. Four hydrodynamic models, namely the hard wall hydrodynamic model (HW‐HDM), the curl‐free hydrodynamic model, the shear forces hydrodynamic model, and the quantum hydrodynamic model (Q‐HDM), are thoroughly investigated. The investigation studies the mode structure (the natural modes or, in quantum optics, the quasi‐normal modes) of the spherical core–shell topology, which is complemented by the plane wave response from the system. The results of the above hydrodynamic models are also compared with those of the specular reflection method. It is demonstrated that the choice of a particular hydrodynamic model strongly affects the natural frequencies and modes in the mode structure of the topology and thus drastically modifies the simulated fields in the near and far regions. Contrary to HW‐HDM and Q‐HDM, the other two hydrodynamic models fail to predict the particles’ response accurately, showing artifactual mode hybridization.

show abstract

Plasmon Spectra of Nano-Structures: A Hydrodynamic Model

Cited by 15 publications

References 81 publications

Performance of Nonlocal Optics When Applied to Plasmonic Nanostructures

Performance of Nonlocal Optics When Applied to Plasmonic Nanostructures

Plasmon modes of spherical nanoparticles: The effects of quantum nonlocality

Appropriate Nonlocal Hydrodynamic Models for the Characterization of Deep‐Nanometer Scale Plasmonic Scatterers

Contact Info

Product

Resources

About