Free Electron–Plasmon Coupling Strength and Near-Field Retrieval through Electron Energy-Dependent Cathodoluminescence Spectroscopy

E Akerboom, V Di Giulio, NJ Schilder… - ACS …, 2024 - ACS Publications
Tightly confined optical near fields in plasmonic nanostructures play a pivotal role in
important applications ranging from optical sensing to light harvesting. Energetic electrons …