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.
Fabio Nobile, Yoshihito Kazashi
Quentin Christian Becker, Mike Yan Michelis
Michaël Unser, Pakshal Narendra Bohra