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Growth and spectral properties of Nd:LaVO4 crystal |
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| Authors: | Lizhen Zhang Zushu Hu Zhoubin Lin Guofu Wang |
| Institution: | 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. |
| Keywords: | A1 Optical microscopy A2 Growth from melt B1 Vanadates B2 Solid-state laser materials |
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