Co2+:MgAl2O4 saturable absorber transparent ceramics fabricated by high-pressure spark plasma sintering. - Ratzker, Barak; Shrem, Roni; Ayalon, Inbar; Shirakov, Avry; Burshtein, Zeev; Kalabukhov, Sergey; Maman, Nitzan; Ezersky, Vladimir; Ishaaya, Amiel; Galun, Ehud; Frage, Nachum (Journal of the European Ceramic Society, 2022)