Tittl, AndreasAndreasTittl2026-03-262026-03-262025-0715th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META 2025https://hdl.handle.net/11420/62415Permittivity-driven bound states in the continuum enable all-dielectric metasurfaces that overcome geometrical symmetry-breaking limits. Recent demonstrations reveal high-Q resonances with exceptional spectral control, dynamic tunability with electro-optical polymers, and all-optical generation via ultrafast pulses, enabling promising applications in adaptive photonics and high-speed modulators.enTechnology::600: TechnologyConference PaperConference Paper