Crystallography, spectroscopic analysis, and lasing properties of Nd 3 + : Y 3 Sc 2 Al 3 O 12

摘要: The crystallographic, optical, and spectroscopic properties of ${\mathrm{Nd}}^{3+}$${:}_{3}$${\mathrm{Sc}}_{2}$${\mathrm{Al}}_{3}$${\mathrm{O}}_{12}$ are reported from which an assessment can be made regarding the material's potential as a laser. Individual Stark levels for many $^{2\mathrm{S}+1}\mathrm{L}_{\mathrm{J}}$ manifolds ${\mathrm{Nd}}^{3+}$(4${\mathrm{f}}^{3}$) in crystal have been identified emission absorption data up to 17 600 ${\mathrm{cm}}^{\mathrm{\ensuremath{-}}1}$ at 14 K. observed crystal-field splitting measured cross sections (intensities) associated with manifold-to-manifold transitions compared calculated splittings intensities. Judd-Ofelt intensity parameters were Nd all other rare-earth ions. Branching ratios diode-array-pumped laser slope efficiencies also reported. We conclude that ${\mathrm{Nd}}^{3+}$:${\mathrm{Y}}_{3}$${\mathrm{Sc}}_{2}$${\mathrm{Al}}_{3}$${\mathrm{O}}_{12}$ has diode-pumped one-micrometer material.