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The concept of self-coupling modes, which are eigen-vectors of the roundtrip matrix, is introduced. I investigate its use for the identification and analysis of the resonances taking place in periodic metasurfaces. It also improves the interpolation of the response of a resonant metasurface.
Viktor Kuncak, Simon Guilloud, Sankalp Gambhir
Giovanni De Cesare, Paolo Perona, Robin Schroff