Publication

Interplay Between Bound State in the Continuum and the Generalized Kerker Effect in Plasmonic Metasurfaces

2026

Abstract

Collective resonances in plasmonic metasurfaces provide a powerful platform for engineering spectral responses and scattering directionality with high precision. A prominent example of such resonant directional scattering is the generalized Kerker effect, in which far‐field interference between higher order multipoles leads to strong suppression of reflection within a narrow spectral range. In this work, we experimentally demonstrate a plasmonic metasurface exhibiting the resonant lattice Kerker effect due to the excitation of a nonlocal mode. Through detailed analysis, we elucidate the underlying physical mechanisms and clarify its intricate relationship to bound states in the continuum (BIC), offering new insights for the design of high‐ Q plasmonic metasurfaces.

Official source

https://infoscience.epfl.ch/entities/publication/660c272a-2466-417d-a779-80877a87a7c4

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2026

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/660c272a-2466-417d-a779-80877a87a7c4

About this result

Related concepts (25)

Plasmonic metamaterial

A plasmonic metamaterial is a metamaterial that uses surface plasmons to achieve optical properties not seen in nature. Plasmons are produced from the interaction of light with metal-dielectric materials. Under specific conditions, the incident light couples with the surface plasmons to create self-sustaining, propagating electromagnetic waves known as surface plasmon polaritons (SPPs). Once launched, the SPPs ripple along the metal-dielectric interface. Compared with the incident light, the SPPs can be much shorter in wavelength.

Mie scattering

The Mie solution to Maxwell's equations (also known as the Lorenz–Mie solution, the Lorenz–Mie–Debye solution or Mie scattering) describes the scattering of an electromagnetic plane wave by a homogeneous sphere. The solution takes the form of an infinite series of spherical multipole partial waves. It is named after Gustav Mie. The term Mie solution is also used for solutions of Maxwell's equations for scattering by stratified spheres or by infinite cylinders, or other geometries where one can write separate equations for the radial and angular dependence of solutions.

Metamaterial

A metamaterial (from the Greek word μετά meta, meaning "beyond" or "after", and the Latin word materia, meaning "matter" or "material") is any material engineered to have a property that is rarely observed in naturally occurring materials. They are made from assemblies of multiple elements fashioned from composite materials such as metals and plastics. These materials are usually arranged in repeating patterns, at scales that are smaller than the wavelengths of the phenomena they influence.

Related publications (1)

Interplay Between Bound State in the Continuum and the Generalized Kerker Effect in Plasmonic Metasurfaces

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Non-Reciprocal and Topological Wave Phenomena at the Sub-Wavelength Scale