Title :
Quenching behaviour of highly doped Yb:YAG and YbAG
Author :
de Sousa, D.F. ; Martynyuk, N. ; Peters, V. ; Lünstedt, K. ; Rademaker, K. ; Petermann, K. ; Basun, S.
Author_Institution :
Inst. fur Laser-Phys., Hamburg Univ., Germany
Abstract :
In this paper, 80% doped Yb:YAG and YbAG crystals were investigated by means of fluorescence lifetime, optical absorption and photoconductivity measurements in order to study the effect of the Yb2+ impurities in the quenching of the 2F52/→2F72/ Yb3+ transition. The samples were grown in rhenium crucibles in order to avoid other impurities like Fe3+ in the crystals. Annealed samples (1050°C for 7 days) were also studied in order to investigate the properties of the crystals without Yb2+.
Keywords :
fluorescence; laser transitions; light absorption; optical materials; photoconducting materials; photoconductivity; radiation quenching; rhenium; ytterbium; ytterbium compounds; yttrium compounds; Re; YAG:Yb; YAl5O12:Yb; Yb:YAG crystal; Yb3Al5O12:Yb; YbAG crystal; annealing; crystal impurity; crystal properties; crystal quenching behaviour; fluorescence lifetime; optical absorption; photoconductivity measurement; rhenium crucible; Absorption; Annealing; Crystals; Energy exchange; Energy states; Impurities; Laser theory; Luminescence; Neodymium; Photoconductivity;
Conference_Titel :
Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on
Print_ISBN :
0-7803-7734-6
DOI :
10.1109/CLEOE.2003.1312398
