Abstract
High resolution spectra of optical absorption and luminescence were recorded at temperatures below 6 K for Pr3+, Sm3+, Er3+, and Yb3+ ions embedded in Gd3Ga5O12–Gd3Al5O12 and Lu2SiO5–Gd2SiO5 solid solution crystals fabricated by the Czochralski method. Detailed analysis of acquired spectral bands related to transitions between the lowest energy components (0–0) lines of initial and terminal multiplets provided quantitative information regarding bandwidths, peak transition energies and number of band components. Combination of these data with structural peculiarities of the hosts made it possible to propose the interpretation of optical interaction in systems under study.
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