Quantum hydrodynamics for nanoplasmonics

Giovanni Manfredi; Paul-Antoine Hervieux; Fatema Tanjia

doi:10.1117/12.2320737

19 September 2018 Quantum hydrodynamics for nanoplasmonics

Giovanni Manfredi, Paul-Antoine Hervieux, Fatema Tanjia

Proceedings Volume 10722, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVI; 107220B (2018) https://doi.org/10.1117/12.2320737
Event: SPIE Nanoscience + Engineering, 2018, San Diego, California, United States

Abstract

Quantum effects play a significant role in nanometric plasmonic devices, such as small metal clusters and metallic nanoshells. For structures containing a large number of electrons, ab-initio methods such as the time-dependent density functional theory (TD-DFT) are often impractical because of severe computational constraints. Quantum hydrodynamics (QHD) offers a valuable alternative by representing the electron population as a continuous fluid medium evolving under the action of the self-consistent and external fields. Although relatively simple, QHD can incorporate quantum and nonlinear effects, nonlocal effects such as the electron spillout, as well as exchange and correlations. Here, we show an application of the QHD methods to the plasmonic breathing oscillations in metallic nanoshells. We illustrate the main advantages of this approach by comparing systematically the QHD results with those obtained with a TD-DFT code.

Conference Presentation

Citation Download Citation

Giovanni Manfredi, Paul-Antoine Hervieux, and Fatema Tanjia "Quantum hydrodynamics for nanoplasmonics", Proc. SPIE 10722, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVI, 107220B (19 September 2018); https://doi.org/10.1117/12.2320737

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