Affiliation: | a Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China b Graduate School of Chinese Academy of Sciences, Beijing 100039, China |
Abstract: | This paper reports the growth and spectral properties of 3.5 at% Nd3+:LaVO4 crystal with diameter of 20×15 mm2 which has been grown by the Czochralski method. The spectral parameters were calculated based on Judd–Ofelt theory. The intensity parameters Ωλ are: Ω2=2.102×10−20 cm2, Ω4=3.871×10−20 cm2, Ω6=3.235×10−20 cm2. The radiative lifetime τr is 209 μs and calculated fluorescence branch ratios are: β1(0.88μm)=45.2, β2(1.06μm)=46.7, β3(1.34μm)=8.1. The measured fluorescence lifetime τf is 137 μm and the quantum efficiency η is 65.6%. The absorption band at 808 nm wavelength has an FWHM of 20 nm. The absorption and emission cross sections are 3×10−20 and 6.13×10−20 cm2, respectively. |