The excited state dynamics Y1-xDyxPO4 (x= 0.005 - 0.1) single crystals have been investigated as a function of the temperature and of the concentration. When x=0.005 the 4F 9/2 emission decays exponentially with time constant of the order of 480-500 μs. For higher doping levels the curves are non exponential, indicating that energy transfer processes take place. The Inokuti-Hirayama model applied to the analysis of the decay profiles of the 3% doped crystal has allowed to obtain information about the transfer mechanism.
Optical spectroscopy of the Dy3+ ion in YPO4 crystals / Faoro, R.; Moglia, F.; Tonelli, M.; Cavalli, E.. - In: PHYSICS PROCEDIA. - ISSN 1875-3892. - 2:2(2009), pp. 345-347. [10.1016/j.phpro.2009.07.018]
Optical spectroscopy of the Dy3+ ion in YPO4 crystals
Cavalli E.
2009-01-01
Abstract
The excited state dynamics Y1-xDyxPO4 (x= 0.005 - 0.1) single crystals have been investigated as a function of the temperature and of the concentration. When x=0.005 the 4F 9/2 emission decays exponentially with time constant of the order of 480-500 μs. For higher doping levels the curves are non exponential, indicating that energy transfer processes take place. The Inokuti-Hirayama model applied to the analysis of the decay profiles of the 3% doped crystal has allowed to obtain information about the transfer mechanism.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
