About

About PoLightFilters PoLightFilters develops angle-stable thin-film optical filters that maintain consistent spectral performance across wide angles of incidence. By eliminating the angular dispersion inherent to conventional interference filters, our technology prevents spectral shift in real optical systems. Based on strong light–matter coupling, we decouple spectral response from angle of incidence, enabling higher signal-to-noise ratios, wider fields of view, and simpler optical designs. In-house design and fabrication enable implementation across diverse substrates and form factors, including direct integration onto optical components, providing true system-level design freedom. PoLightFilters is an EXIST-funded research transfer project at the University of Cologne.