Journal
PHYSICAL REVIEW B
Volume 98, Issue 12, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.98.125409
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Funding
- Gordon and Betty Moore Foundation
- Lee Family Scholarship
- Marie Sklodowska-Curie Fellowship
- EPSRC [EP/L024926/1] Funding Source: UKRI
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Surface plasmons dominate the optical response of metal surfaces, and their nature is controlled by surface geometry. Here we study metasurfaces containing singularities in the form of sharp edges and characterized by three quantum numbers despite the two-dimensional nature of the surface. We explore the nature of the plasmonic excitations, their ability to generate large concentrations of optical energy, and the transition from the discrete excitation spectrum of a nonsingular surface to the continuous spectrum of a singular metasurface.
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