Abstract

The crystal of Dy 3+-doped YAl 3(BO 3) 4 (Dy:YAB) has been grown by top-seeded solution growth method. The dispersion parameters of the refractive indices are measured and fitted by the least-squares method. Optical absorption and emission intensities of Dy 3+ ions in YAB are investigated. Based on the Judd–Ofelt theory, the spectral parameters: intensity parameters Ω t , radiative transition probabilities A J,J ′, oscillator strengths f J,J ′ and the radiative lifetime of selected levels, have been obtained. The value of integrated emission cross section was also calculated. The results indicate that Dy:YAB may be considered as laser active materials operating near 2.7, 1.7, and 0.6 μm, respectively.

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