Nicolas Marsic, ingénieur chez Dassault Systems, donnera un séminaire intitulé « 2.5D finite element modelling of spherical open electromagnetic cavities » le Mercredi 8 octobre 2025 à 10h30 en salle Pierre Cotton de l’Institut Fresnel, campus St Jérôme à Marseille.
Résumé : 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
