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The role of Nd3+ in the population inversion between 1G4 and 3H6 states of Tm3+ in Yb:Nd:Tm:YLF crystal André Felipe Henriques Librantz ; Lilia Coronato Courrol ; Laércio Gomes ; Izilda Marcia Ranieri ; Sonia Lícia Baldochi ; Exacta 2007, 5 (1) |