Quantum electrodynamics description of localized surface plasmons at a metal nanosphere
| Autor: | George C. Schatz, Kuniyuki Miwa |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Electromagnetic field
Physics Condensed Matter - Materials Science Condensed Matter - Mesoscale and Nanoscale Physics Canonical quantization Mie scattering Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences Physics::Optics 01 natural sciences 010305 fluids & plasmas Electric field Quantum electrodynamics Mesoscale and Nanoscale Physics (cond-mat.mes-hall) 0103 physical sciences Classical electromagnetism 010306 general physics Quantum Plasmon Optics (physics.optics) Physics - Optics Localized surface plasmon |
| Zdroj: | Physical Review A. 103 |
| ISSN: | 2469-9934 2469-9926 |
| Popis: | A canonical quantization scheme for localized surface plasmons (LSPs) in a metal nanosphere is presented based on a microscopic model composed of electromagnetic fields, oscillators that describe plasmons, and a reservoir that describes excitations other than plasmons. The eigenmodes of this fully quantum electrodynamic theory show a spectrum that includes radiative depolarization and broadening, including redshifting from the quasi-static LSP modes, with increasing particle size. These spectral profiles correctly match those obtained with exact classical electrodynamics (Mie theory). The present scheme provides the electric fields per plasmon in both near- and far-field regions whereby its utility in the fields of quantum plasmonics and nano-optics is demonstrated. 7 pages, 6 figures |
| Databáze: | OpenAIRE |
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