Up-conversion luminescence from Nd3 ions doped in NaBi(WO4)(2) single crystal

作者：Wei Donglei; Huang Yanlin^*; Shi Liang; Qiao Xuebin; Seo Hyo Jin

来源：Journal of Rare Earths, 2009, 27(6): 905-910.

DOI：10.1016/S1002-0721(08)60360-9

• optical materials
• NaBi(WO4)(2)
• neodymium
• up-conversion luminescence
• rare earths

The luminescence of Nd3 -doped in NaBi(WO4)(2) single crystal was investigated from 10 K to room temperature. The excitation source was a pulsed dye laser in resonance into the ((4)G(5/2) (2)G(1)(7/2)) levels of Nd3 ions. Several blue emission bands in the up-conversion luminescence spectra corresponded to transitions from (2)p(1/2) to I-4(9/2). Some violet bands corresponding to transitions of D-4(3/2)->(I-4(9/2), I-4(11/2), I-4(13/2)) were also observed. For comparison, the luminescence spectra and decay curves excited by the pulsed 355 run laser were measured. In order to investigate up-conversion mechanisms, the decay behavior and the dependence of the up-conversion luminescence on laser powers were investigated. The temporal decay behavior of the up-conversion luminescence indicated that the two-photon excited state absorption of the Nd3 ions was the dominant mechanism in this crystal.

• 出版日期2009-12
• 单位苏州大学