Luis Miguel Sánchez-Brea is an Associate Professor at the Faculty of Physics at the Complutense University of Madrid and co-Director of the Applied Optics Complutense Group. He obtained his B.Sc. in 1995 and his Ph.D. in Optics in 2001, both from the Complutense University of Madrid. From 2001 to 2003, he worked in R&D at Fagor Automation S. Coop. He then served as an Assistant Professor (2003–2004) and later as a Ramón y Cajal researcher (2004–2007). He has authored approximately 100 articles in international journals and has led numerous research projects and technology transfer contracts with industry. His research interests include diffraction gratings, diffractive optical elements (DOEs), spatial light modulators, polarimetry, and applied and industrial optics.