Ultraviolet upconversion luminescence of Gd3+ from Ho 3+ and Gd3+ codoped oxide ceramic induced by 532-nm CW laser excitation

Feng Qin, Yangdong Zheng, Ying Yu, Changbin Zheng, Pouran Sadat Tayebi, Zhiguo Zhang, Wenwu Cao

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

Ultraviolet upconversion emissions around 314 nm from 6P J states of Gd3+ ions have been observed in Y 1.98 - xGdxHo0.02O3 (x = 0.02, 0.10, 0.20, and 0.30) oxide ceramics under the excitation of a continuous-wave 532-nm laser. We found that the energy transfer process from Ho3+ to Gd3+ plays an important role in populating the 6P J states of Gd3+. The doping of Gd3+ ions does not affect 5G4 and 5G5 states but only the 3D3 state of Ho3+. The emissions from 3D3 state decrease with the increase of Gd3+ concentration. Power dependence curves and time-resolved spectra have been measured to identify the proposed upconversion mechanism.

Original languageEnglish (US)
Pages (from-to)3114-3117
Number of pages4
JournalOptics Communications
Volume284
Issue number12
DOIs
StatePublished - Jun 1 2011

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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