Growth and spectroscopy of new laser crystals Ca₁₀Yb₀.₃K₀.₁(VO₄)₇

Ca₁₀Yb₀.₃K₀.₁(VO₄)₇ single crystals have been grown for the first time. Absorption and luminescence spectra, luminescence decay kinetics of ²F ₅/₂ level for Yb³⁺ ion are investigated

Growth, spectroscopy and continuous-wave laser performance of Nd³⁺:LiLu_0.65Y_0.35F₄ crystal

A mixed fluoride crystal of LiLu0.65Y0.35F4 doped with Nd3+ ions was grown by the Bridgman–Stockbarger method. Polarized absorption and luminescence spectra as well as luminescence lifetime were measured at room temperature. Emission probabilities, branching ratios and radiative lifetime were studied within the Judd–Ofelt theory and the emission cross section spectra were calculated. Efficient continuous wave laser operation was demonstrated with the crystal. A maximum output power of 7.7 W and slope efficiency of 60% were achieved at 1047 nm for the TEM00 mode