Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong S.A.R., PR China.
J Am Chem Soc. 2010 Jan 27;132(3):947-9. doi: 10.1021/ja909254u.
A new multiphoton upconversion process for rare earth oxide powders is reported, using infrared laser diodes. In vacuum, multiphoton excitation produces intense upconversion emission in the visible spectral range, and Tm(2)O(3) or Yb(2)O(3) achieves pure white upconversion using 808 or 975 nm excitation, respectively.
报道了一种新的基于红外激光二极管的稀土氧化物粉末多光子上转换过程。在真空中，多光子激发在可见光谱范围内产生强烈的上转换发射，并且分别使用 808nm 或 975nm 激发，Tm2O3 或 Yb2O3 实现纯白光上转换。
