Nicolas Marsic, software engineer in Computational Electromagnetism at Dassault Systems, will give a seminar entitled “2.5D finite element modelling of spherical open electromagnetic cavities” on Wednesday October 8th 2025 at 10h30 in Pierre Cotton Room at Institut Fresnel, campus St Jérôme, Marseille.
Abstract : In this presentation, we deal with the computation of quality factors of open electromagnetic resonators. The case of modes associated with a high quality factor is usually challenging, as it often requires a sizeable number of degrees of freedom to accurately capture the large ratio between the real and imaginary parts of the mode complex eigenvalue. However, in the fortunate situation of cavities exhibiting geometrical symmetries, the computational effort can be drastically reduced. Nevertheless, exploiting symmetries is not always straightforward: even if the geometry exhibits some, the electromagnetic field of a given mode might not. In this talk, we will dive into the details on how to leverage symmetries in the cylindrical case, while considering fully 3D eigenmodes.
Invitation : Guillaume Demsy, Boris gralak et André Nicolet
