Abstract

The spectroscopic properties of ${\left({\mathrm{Y}}_{0.92-x}{\mathrm{La}}_{0.08}{\mathrm{Nd}}_x\right)}_2{\mathrm{O}}_3$ transparent ceramics were investigated. According to three intensity parameters $({\Omega }_2,{\Omega }_4,{\Omega }_6)$ fitted by the Judd–Ofelt theory, the spectroscopic quality parameter $\left(X_{\mathrm{Nd}}\right)$, branching ratio $\left({\beta }_{J,J^{\prime }}\right)$, and quantum efficiency $\left(\eta \right)$ of ${\mathrm{Nd}}^{3+}$ were determined. It was found that $X_{\mathrm{Nd}}$ of the host, owing to the additive ${\mathrm{La}}_2{\mathrm{O}}_3$, was decreased from 1.6 to 0.46; thus ${\beta }_{J,11∕2}$ was increased from 46% to 56.82%. A figure of merit of the specimens was discussed and compared with Nd:YAG transparent ceramic.

© 2007 Optical Society of America

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