Growth and spectroscopic properties of Yb3+-doped Sc2O3 crystals grown by the micro-pulling-down method

• Published in: Optical materials Vol. 30; no. 1; pp. 18 - 21
• Main Authors: Simura, Rayko, Jouini, Anis, Mun, Ji-Hun, Brenier, Alain, Yoshikawa, Akira, Boulon, Georges, Fukuda, Tsuguo
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 01.09.2007; Elsevier Science
• Subjects: Cross-disciplinary physics: materials science; rheology; Diode-pumped lasers; Exact sciences and technology; Fundamental areas of phenomenology (including applications); Laser materials; Lasers; Life time; Luminescence; Materials science; Methods of crystal growth; physics of crystal growth; Optical materials; Optics; Physics; Rare earth sesquioxides; Yb3+:Sc2O3; Yb3+:Sc2O3; Luminescence; 81.10; Rare earth sesquioxides; Life time; 42.55.X; 32.70.C; Crystal growth; 42.55.X Rare earth sesquioxides; Scandium oxides; Fluorescence; Doped materials; Binary compounds; Laser materials; Rare earth compounds; Ytterbium additions; Emission spectra; Ambient temperature; Optical materials; Diode pumping; Absorption spectra
• ISSN: 0925-3467; 1873-1252
• DOI: 10.1016/j.optmat.2006.11.047

Room temperature absorption and fluorescent emissions were investigated for Yb3+-doped Sc2O3, which were grown by the micro-pulling-down (μ-PD) method. The decay time for infrared Yb3+ (2F5/2) fluorescence was 561μs in the case of 0.5% Yb3+-doped Sc2O3. It is observed that this value increases slightly when the Yb3+ concentration becomes 10 times higher (593μs for 5%). We understand that it is due to self-trapping effect.