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Absorption, excitation and emission spectra as well as decay time measurements at 10, 77, and 300 K were performed for Ga3Gd3Sc2O12 garnet single-crystal doped with Cr3+ and Nd3+ ions. Strong reabsorption of Cr3+ emission by Nd3+ absorption lines was observed. The assignments of f–f and d–d transitions were proposed. The broad emission band of chromium ions is an indication that weak/intermediate crystal field strength is present at the Cr3+ site.
Absorption, excitation and emission spectra as well as decay time measurements at 10, 77, and 300 K were performed for Ga3Gd3Sc2O12 garnet single-crystal doped with Cr3 + and Nd3 + ions. Strong reabsorption of Cr3 + emission by Nd3 + absorption lines was observed. The assignments of f-f and d-d transitions were proposed. The broad emission band of chromium ions is an indication that weak / intermediate crystal field strength is present at the Cr3 + site.