Zdeněk Veselý presented our activities in photo-thermal properties analysis at the IR-EMPOWER workshop, which took place in September at the University of the Basque Country in Bilbao. In his invited lecture, he summarized the developed measurement methods and their application areas, including their use for precise IR thermodiagnostics in additive manufacturing as part of the OPTHERM project, which aims to optimize 3D printing of plastic filaments to enhance the strength of printed parts.