On July 14th 2021 Jorge Omar Álvarez Pérez obtained his PhD degree from the Autonomous University of Madrid with the work entitled «Caracterización física y láser de monocristales de granates desordenados tipo Ca3(NbGa)5O12 dopados con Yb3+» (Physical and laser characterization of Ca3(NbGa)5O12 disordered single crystals doped with Yb3+). The work was awared with the «cum laude» maximum qualificatlon.