Flux grown YAl3(BO3)(4) (YAB) crystals doped with Tm3+ have been characterised by optical spectroscopy techniques. The absorption and emission spectra in the UV-VIS-NIR region have been measured at 10 and 298 K. The visible emission decay profiles have been measured at room temperature. The low temperature spectra have been used to obtain the energy level scheme of the optically active ion in YAB. The Judd-Ofelt parametrization scheme has been applied to the analysis of the room temperature absorption spectra in order to evaluate the intensity parameters, the branching ratios and the radiative lifetimes of the emitting states. These have been compared with the experimental values. (c) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Optical spectra of Tm3+-doped YAl3(BO3)4 single crystals
SPEGHINI, Adolfo;BETTINELLI, Marco Giovanni
2007-01-01
Abstract
Flux grown YAl3(BO3)(4) (YAB) crystals doped with Tm3+ have been characterised by optical spectroscopy techniques. The absorption and emission spectra in the UV-VIS-NIR region have been measured at 10 and 298 K. The visible emission decay profiles have been measured at room temperature. The low temperature spectra have been used to obtain the energy level scheme of the optically active ion in YAB. The Judd-Ofelt parametrization scheme has been applied to the analysis of the room temperature absorption spectra in order to evaluate the intensity parameters, the branching ratios and the radiative lifetimes of the emitting states. These have been compared with the experimental values. (c) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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