Abstract

The Nd3+Yb3+ energy transfer spectral characteristics in (Nd,Yb):Y2O3 ceramics and the relevant spectral and emission decay data on single-doped (especially temperature effects) and codoped samples are presented. The transfer efficiencies depend strongly on Yb3+ content, attaining 98% for Nd1at.%Yb5at.% at 300K. The resonant Nd3+Yb3+ energy transfer (F324(Nd),F722(Yb))(I924(Nd),F522(Yb)), involving Nd3+ in C2 sites and Yb3+ in C2 and C3i sites, is dominated by a dipole–dipole interaction with a microparameter CDA,NdYb1×1038cm6s1 at 300K. The possibility of using this system for Nd-sensitized Yb3+ laser emission from room-to-cryogenic temperatures is discussed.

© 2010 Optical Society of America

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