Annalen der Physik

Graphical Abstract Tunable Metastructures In article number 2200491, a tunable transmissive metastructure for electromagnetic wave polarization conversion based on the Fabry—Perot cavity resonance principle and the selective permeability of gratings for specific electromagnetic waves is proposed by Hai-Feng Zhang and co-workers. The graphene demonstrates exceptional capabilities in the switching of the operating band due to its Fermi energy, which can be flexibly adjusted through the bias voltage.