Visible to near infrared conversion in Ce3+-Yb3+ Co-doped YAG ceramics

The energy transfer from Ce<sup>3+</sup> to Yb<sup>3+</sup> in Ce<sup>3+</sup>-Yb<sup>3+</sup>:YA G (Y <inf>3</inf>Al<inf>5</inf>O<inf>12</inf>) ceramics was observed. While the energy transfer efficiency estimated from the lifetime was about 48%, the observed quantum yield of Yb<sup>3+</sup> emission was about 11% upon Ce<sup>3+</sup> excitation in the sample.

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