Growth and Polarized Spectroscopy of Stoichiometric NaEu(WO4)2 Laser Crystal

Stoichiometric tetragonal disordered $\mathrm{NaEu}\left(\mathrm{WO}_{4}\right)_{2}$ laser crystal is grown by the Czochralski method and its polarized spectroscopic properties are studied. The stimulate-demission cross-section for the deep-red ${ }^{5} \mathrm{D}_{0} \rightarrow{ }^{7} \mathrm{~F}_{4}$ transition is $2.53 \times 10^{-20} \mathrm{~cm}^{2}$ at $\sim 702 \mathrm{~nm}$ for $\pi$-polarization.