Yb-doped mixed sesquioxides for ultrashort pulse generation in the thin disk laser setup. - Beil, Kolja; Saraceno, Clara; Schriber, Cinia; Emaury, Florian; Heckl, Oliver; Baer, Cyrill; Golling, Matthias; Südmeyer, Thomas; Keller, Ursula; Kränkel, Christian; Huber, Günter (Applied Physics B: Lasers & Optics, 2013)