Hu, HaiyangHaiyangHuLu, WenzhengWenzhengLuAntonov, AlexanderAlexanderAntonovBerté, RodrigoRodrigoBertéMaier, Stefan A.Stefan A.MaierTittl, AndreasAndreasTittl2026-04-092026-04-092025-0715th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META 2025https://hdl.handle.net/11420/62538In nanophotonics, we introduce permittivity-driven quasi-BICs (ε-qBICs), achieved by embedding identical resonators in a refractive index-contrasting medium. Integrating electro-optic polyaniline enables electrically reconfigurable ε-qBICs with rapid switching and durability, advancing tunable metasurfaces for on-chip optics, sensing, and adaptive photonic applications without modifying resonator geometry.enTechnology::600: TechnologyConference Paper not in Proceedings