Department of Chemistry, Harbin Institute of Technology, Harbin 150001, China.
Opt Lett. 2012 Sep 1;37(17):3537-9. doi: 10.1364/OL.37.003537.
Ho3+/Yb3+/Tm3+ tridoped LiNbO3 single crystal exhibiting intense upconversion white light under 980 nm excitation has been successfully fabricated by the Czochralski method. The tridoped LiNbO3 single crystal offers power dependent color tuning properties by simply changing excitation power. Efficient three-photon blue upconversion emission and two-photon green and red upconversion emissions have been observed. In addition, the red emission of Ho3+ originates dominantly from the nonradiative decay of green emission. The LiNbO3 with upconversion white light will be a potential laser candidate material.
采用提拉法成功制备了 Ho3+/Yb3+/Tm3+三掺杂 LiNbO3 单晶，该单晶在 980nm 激发下表现出强上转换白光发射。通过简单地改变激发功率，三掺杂 LiNbO3 单晶表现出与功率相关的颜色调谐特性。观察到有效的三光子蓝上转换发射以及双光子绿和红上转换发射。此外，Ho3+的红光发射主要源于绿光发射的非辐射衰减。具有上转换白光的 LiNbO3 将是一种潜在的激光候选材料。
