## Abstract

The ${\mathrm{Nd}}^{3+}\to {\mathrm{Yb}}^{3+}$ energy transfer spectral characteristics in $(\mathrm{Nd},\mathrm{Yb}):{\mathrm{Y}}_{2}{\mathrm{O}}_{3}$ 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 ${\mathrm{Yb}}^{3+}$ content, attaining $\sim 98\mathrm{\%}$ for $\mathrm{Nd}1\text{\hspace{0.17em}}\mathrm{at.}\mathrm{\%}\u2013\mathrm{Yb}5\text{\hspace{0.17em}}\mathrm{at.}\mathrm{\%}$ at $300\text{\hspace{0.17em}}\mathrm{K}$. The resonant ${\mathrm{Nd}}^{3+}\to {\mathrm{Yb}}^{3+}$ energy transfer $({}^{4}\mathrm{F}_{3\u22152}\left(\mathrm{Nd}\right),{}^{2}\mathrm{F}_{7\u22152}\left(\mathrm{Yb}\right))\to ({}^{4}\mathrm{I}_{9\u22152}\left(\mathrm{Nd}\right),{}^{2}\mathrm{F}_{5\u22152}\left(\mathrm{Yb}\right))$, involving ${\mathrm{Nd}}^{3+}$ in ${\mathrm{C}}_{2}$ sites and ${\mathrm{Yb}}^{3+}$ in ${\mathrm{C}}_{2}$ and ${\mathrm{C}}_{3\mathrm{i}}$ sites, is dominated by a dipole–dipole interaction with a microparameter ${C}_{\mathrm{DA},\mathrm{Nd}\u2013\mathrm{Yb}}\approx 1\times {10}^{-38}\text{\hspace{0.17em}}{\mathrm{cm}}^{6}\phantom{\rule{0.2em}{0ex}}{\mathrm{s}}^{-1}$ at $300\text{\hspace{0.17em}}\mathrm{K}$. The possibility of using this system for Nd-sensitized ${\mathrm{Yb}}^{3+}$ laser emission from room-to-cryogenic temperatures is discussed.

© 2010 Optical Society of America

Full Article | PDF Article**OSA Recommended Articles**

^{3+}-Yb

^{3+}codoped Ba-Al-metaphosphate glasses

Atul D. Sontakke, Kaushik Biswas, R. Sen, and K. Annapurna

J. Opt. Soc. Am. B **27**(12) 2750-2758 (2010)

_{3}Al

_{5}O

_{12}transparent ceramics

Binjie Fei, Wang Guo, Jiquan Huang, Qiufeng Huang, Jian Chen, Junting Li, Weidong Chen, Ge Zhang, and Yongge Cao

Opt. Mater. Express **3**(12) 2037-2044 (2013)

^{3+}→Yb

^{3+}energy transfer in 0.8CaSiO

_{3}-0.2Ca

_{3}(PO

_{4})

_{2}eutectic glass

Rolindes Balda, Jose Ignacio Peña, M. Angeles Arriandiaga, and Joaquín Fernández

Opt. Express **18**(13) 13842-13850 (2010)