Plasmon-enhanced quadrupole transitions of Rydberg excitons in Cu2O

2025/07/16 by David Ziemkiewicz, Ziemkiewicz, David, Sylwia Zielińska‐Raczyńska +1
Physics and Astronomy · #Advanced Chemical Physics Studies #Advanced Condensed Matter Physics #FOS: Physical sciences #Optics (physics.optics) #Physics of Superconductivity and Magnetism

paper · pdf · doi:10.48550/arxiv.2507.12149

openalex publication_date 2025/07/16 · openalex created_date 2025/10/14 · openalex updated_date 2026/07/28

Abstract

A mechanism for amplification of weak quadrupole transitions of Rydberg excitons in Cu₂O by a plasmonic nanostructure is investigated. The theoretical description of exciton-plasmon interaction is presented and a field averaging approximation is proposed for calculations involving large excitons. Various types of copper, silver and gold-based plasmonic nanostructures are considered and their potential for enhancing quadrupole transitions is evaluated.

Citations

• Molecular saturation determines distinct plasmonic enhancement scenarios for two-photon absorption signal
• Local geometry of electromagnetic fields and its role in molecular multipole transitions
• Optical Constants of the Noble Metals

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