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, J. Pejchal, T. Fukuda

研究成果: Article査読

4 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)541-543
ページ数3
ジャーナルOptical Materials
26
4
DOI
出版ステータスPublished - 2004 9月

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • コンピュータ サイエンス(全般)
  • 原子分子物理学および光学
  • 分光学
  • 物理化学および理論化学
  • 有機化学
  • 無機化学
  • 電子工学および電気工学

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