An erbium-doped transparent glass ceramic, consisting of LaF3 nanocrystallites with a characteristic length of approximately 20 nm embedded in an aluminosilicate glass matrix and exhibiting infrared-to-green upconversion, has been studied. The degree of erbium partitioning into the nanocrystallite phase was found using energy transfer coefficients determined from bulk Er3+:LaF3 samples. This transparent glass ceramic sample was found to have a partitioning fraction of 19±5%.
© 2005 Optical Society of America
Gina C. Jones and S. N. Houde-Walter, "Erbium partitioning in a heavily doped transparent glass ceramic," Opt. Lett. 30, 2122-2124 (2005)