Intense ultraviolet upconversion luminescence from Yb3+ and Tm3+ codoped amorphous fluoride particles synthesized by pulsed laser ablation

Guanshi Qin, Weiping Qin, Changfeng Wu, Shihua Huang, Dan Zhao, Jisen Zhang, Shaozhe Lu

Research output: Contribution to journalArticlepeer-review

57 Scopus citations

Abstract

Zn0.3Al0.25Pb0.3Li0.098Yb 0.1Tm0.002F2.354 amorphous fluoride particles were prepared by pulsed laser ablation. Under a 978-nm laser diode excitation, intense ultraviolet and blue upconversion emissions were observed in the particles. Intensity dependence of the upconversion emissions on the pump power was measured. The results show that the population of the states 1I6, 1D2 and 1G 4 may come from a five-photon, four-photon and three-photon energy transfer upconversion process. In addition, ultraviolet (1I 63F4 transition) and blue ( 1D23F4 transition) upconversion stimulated emissions were observed in the particles.

Original languageEnglish
Pages (from-to)215-219
Number of pages5
JournalOptics Communications
Volume242
Issue number1-3
DOIs
StatePublished - 26 Nov 2004
Externally publishedYes

Keywords

  • Pulsed laser ablation
  • Ultraviolet luminescence
  • Upconversion

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