Growth and characterization of Yb3+ doped garnet crystals for scintillator application

Hiraku Ogino, Akira Yoshikawa, Jong Ho Lee, Martin Nikl, Natalia Solovieva, Tsuguo Fukuda

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Several concentration of Yb-doped Lu3Al5O 12 (Yb:LuAG) and Lu3Ga5O12 (Yb:LGG) single crystals were grown by the micro-pulling-down method. The crystals were seeded-grown in the 〈1 1 1〉 direction and transparent and crack free crystals were obtained. Photoluminescence spectra and decay kinetics of these crystals were studied. Charge transfer luminescence of Yb3+ was observed in both crystals. Mean decay time of about 25 ns at 90 K and strong thermal quenching at room temperature was measured for Yb 5%:LuAG. Radioluminescence intensity was compared to the standard BGO sample.

Original languageEnglish
Pages (from-to)535-539
Number of pages5
JournalOptical Materials
Volume26
Issue number4
DOIs
Publication statusPublished - 2004 Sep

Keywords

  • Charge transfer
  • Crystal growth from the melt
  • Micro-pulling-down method
  • Scintillator
  • Yb

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Electrical and Electronic Engineering

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