Title :
Energy transfer processes in crystalline Er3+,Yb3+:Sc2O3
Author :
Kühn, Henning ; Fechner, Matthias ; Kahn, Andreas ; Scheife, Hanno ; Huber, Gunter
Author_Institution :
Inst. fur Laser-Phys., Univ. Hamburg, Hamburg, Germany
Abstract :
The energy transfer from Yb3+ to Er3+ in crystalline Sc2O3 is studied using continuous wave (cw)-excitation method and Yb3+ ions excitation in the sample by pulsed optical parametrical oscillators. Crystalline Sc2O3 films with different Er3+ and Yb3+ concentrations are grown on alpha-Al2O3 substrates by pulsed laser deposition. Laser-experiments with codoped Er3+(0.23%),Yb3+(0.4%):Sc2O3 and Er3+(0.2%):Sc2O3 are compared, and results reveal that the lower efficiency in the codoped case is in good accordance with the measured transfer efficiency.
Keywords :
doping; erbium; optical materials; pulsed laser deposition; scandium compounds; thin films; ytterbium; Sc2O3:Er; Sc2O3:Er,Yb; Yb3+ ions excitation; alpha-Al2O3 substrates; codoping; cw-excitation method; pulsed laser deposition; pulsed optical parametrical oscillators; transfer efficiency; Absorption; Crystalline materials; Crystallization; Energy exchange; Erbium; Fluorescence; Laser modes; Optical materials; Pulsed laser deposition; Pump lasers;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5196457
