Quasi-normal mode expansion as a tool for the design of nanophotonic devicesRémi Colom, Felix Binkowski, Fridtjof Betz, Martin Hammerschmidt, Lin Zschiedrich and Sven BurgerEPJ Web Conf., 238 (2020) 05008DOI: https://doi.org/10.1051/epjconf/202023805008