Upconversion dynamics in Er3+-doped YAG
作者： H.L. Xu , S. Kröll
DOI: 10.1016/J.JLUMIN.2004.08.047
关键词: Photoluminescence 、 Spectroscopy 、 Photon upconversion 、 Excited state 、 Ultraviolet 、 Laser 、 Energy transfer upconversion 、 Photochemistry 、 Luminescence 、 Chemistry
摘要: Green, blue, violet and ultraviolet upconversion luminescence is reported at room temperature in a YAG: 10.5% Er3+ crystal pumped by one-colour (647 nm) two-colour + 618 laser excitation. The mechanism was studied means of time-resolved spectroscopy the energy flow pathways are described. Based on results it appears that transfer dominant contribution to upconverted upon 647 nm excitation, excited state absorption dominating
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