Тип публикации: статья из журнала
Год издания: 2014
Идентификатор DOI: 10.1016/j.optmat.2014.05.036
Ключевые слова: Absorption, Luminescence, Holmium, Huntite, Judd-Ofelt, Ground state, Integral equations, Positive ions, Single crystals, Kinetic equations, Luminescence transitions, Radiative lifetime, Room temperature, Spectroscopic parameters, Spectroscopic property, Judd-Ofelt theory
Аннотация: The Judd-Ofelt theory has been applied to analyze absorption spectra of Ho3+ ion in HoAl3(BO3)(4) measured in spectral range 300-700 nm at room temperature. The Judd-Ofelt spectroscopic parameters have been determined as: ohm(2) = 18.87 x 10(-20) cm(2), ohm(4) = 17.04 x 10(-20) cm(2), ohm(6) = 9.21 x 10(-20) cm(2). These parametersПоказать полностьюhave been used to calculate radiative lifetimes and branching ratios of the luminescence manifolds. Three luminescent bands were found in the spectral range 450-700 nm ascribed to transitions from the F-5(5), (F-5(4), S-5(2)) and K-3(8) states to the ground state I-5(8). Experimental intensities of these luminescence transitions were compared with those calculated by using Judd-Ofelt theory and the system of kinetic equations for populations of starting luminescing states. Probabilities of radiativeless transitions were evaluated from this comparison. (C) 2014 Elsevier B.V. All rights reserved.
Журнал: OPTICAL MATERIALS
Выпуск журнала: Vol. 37
Номера страниц: 257-261
ISSN журнала: 09253467
Место издания: AMSTERDAM
Издатель: ELSEVIER SCIENCE BV