Hu, H.H.HuHüttenhofer, L.L.HüttenhoferBienek, O.O.BienekWester, A.A.WesterWeber, T.T.WeberSharp, I. D.I. D.SharpMaier, S. A.S. A.MaierCortés, E.E.CortésTittl, AndreasAndreasTittl2026-03-262026-03-262023-07-0113th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META 2023https://hdl.handle.net/11420/62423We develop a multifunctional metasurface platform that leverages the combination of loss-engineered substoichiometric titanium oxide (TiO₂-x) and the emerging physical concept of optical bound states in the continuum (BICs) to boost photoinduced charge transfer (PICT) and provide broad spectral tunability, making this semiconductor metasurface not only a competitive platform for surface photocatalytic investigations, but also a promising candidate for boosting sensitivities in in semiconductor-based surface-enhanced Raman scattering (SERS) applications.Technology::600: TechnologyConference Paper