Crystal growth and optical assessment of Nd3+ : GdAl3(BO3)4 crystal

Wang, Guofu and Lin, Zhoubin and Hu, Zushu and Han, T.P.J. and Gallagher, H.G. and Wells, J.-P.R. (2001) Crystal growth and optical assessment of Nd3+ : GdAl3(BO3)4 crystal. Journal of Crystal Growth, 233 (4). pp. 755-760. ISSN 0022-0248

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Abstract

This paper reports the high-temperature top-seeded solution growth (TSSG) of large single crystal of Nd3+-doped GdAl3(BO3)4 from a K2Mo3O10-LiF flux cooled at a rate of 2 K/day and using a crystal rotation rate of 4.5 rpm. Thepolarized optical absorption and fluorescence spectra of Nd3+ : GdAl3(BO3)4 crystal have been investigated. Polarized absorption cross sections are 4.3x10-20 and 2.6x10-20 cm2 with band widths of 8.7 and 6.1 nm for σ- and π-polarization, respectively. The emission cross sections are 6.3x10-19 and 6.0x10-19 cm2 for σ- and π-polarization, respectively, at 1062 nm corresponding to the 4F3/2→4I11/2 transition. The fluorescence lifetime is 54.3 and 57 μs at 300 and 20 K, respectively.