The energy-transfer rate from the Er3+4I13/2 level to the Tm3+3H4 level (C11′NT) in BaF2/ThF4 fluoride glass is measured and calculated. The results can be used to determine whether rate equations can be used to predict energy-transfer rates.
© 1989 Optical Society of America
C. Y. Chen, R. R. Petrin, D. C. Yeh, W. A. Sibley, and J. L. Adam, "Concentration-dependent energy-transfer processes in Er3+-and Tm3+-doped heavy-metal fluoride glass," Opt. Lett. 14, 432-434 (1989)