CEFITEC is an experimental research unit bridging Physics, Chemistry, Materials Science and Engineering to address technological challenges grounded in solid scientific principles. Our work spans from fundamental studies to proof of concept, prototype development and, in selected cases, operation in real environments. With strong expertise in low-energy gas and surface interactions, vacuum metrology and solar-pumped laser systems, CEFITEC combines advanced instrumentation with applied research to deliver innovation and traceability in key scientific and industrial domains. The unit is equally devoted to advanced training, offering students and young researchers an environment where experimental skills, scientific rigor and engineering creativity converge.