Shaped single crystal growth and scintillating application of Yb:(Gd,Lu)3(Ga,Al)5O12 solid solutions

A. Novosselov, A. Yoshikawa, H. Ogino, M. Nikl, Jan Pejchal, T. Fukuda

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Shaped single crystals of (Yb0.05LuxGd 0.95-x)Ga5O12 (0.0≤x≤0.9) and Yb 0.15Gd0.15Lu2.7(AlxGa 1-x)O12 (0.0≤x≤1.0) were grown by the modified micro-pulling-down method. Continuous solid solutions with garnet structure and a linear compositional dependency of crystal lattice parameter in the system Yb:(Gd,Lu)3(Ga,Al)5O12 are formed. Measured optical absorption spectra of the samples show 4f-4f transitions related to Gd3+ ion at 275 and 310 nm, and also an onset of charge transfer transitions from oxygen ligands to Gd3+ or Yb3+ cations below 240 nm. A complete absence of Yb3+ charge transfer luminescence under X-ray excitation in any of the investigated samples was explained by the overlapping of charge transfer absorption of Yb3+ by that of Gd 3+ ions. For specific composition of Lu1.5Gd 1.5Ga5O12 an intense defect - host lattice-related emission, which achieve of about 40% integrated intensity compared with Bi4Ge3O12, was found.

Original languageEnglish
Pages (from-to)541-543
Number of pages3
JournalOptical Materials
Volume26
Issue number4
DOIs
Publication statusPublished - 2004 Sep

Keywords

  • Characterization
  • Garnet
  • Single crystal growth
  • Solid solutions
  • 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

Fingerprint Dive into the research topics of 'Shaped single crystal growth and scintillating application of Yb:(Gd,Lu)<sub>3</sub>(Ga,Al)<sub>5</sub>O<sub>12</sub> solid solutions'. Together they form a unique fingerprint.

Cite this