Growth and characterization of Tm-doped Y2O3 single crystals

J. H. Mun, A. Jouini, A. Novoselov, Y. Guyot, A. Yoshikawa, H. Ohta, H. Shibata, Y. Waseda, G. Boulon, T. Fukuda

研究成果: Article査読

22 被引用数 (Scopus)

抄録

The rare-earth sesquioxides (RE2O3, RE = Lu, Y and Sc) are promising host materials for solid-state lasers due to their low phonon energy and high thermal conductivity. On the other hand, Tm3+ and Yb3+ are preferable activators for advanced laser diode pumped solid-state lasers. In addition to that, Tm-doped materials can be used for eye-safe lasers application. Tm-doped Y2O3 single crystals were grown using the micro-pulling-down method. Crystals were transparent with gray and blue colors of 4.2 mm in diameter and 13-20 mm in length. The crystallinity was characterized using X-ray rocking curve analysis. Tm-doped Y2O3 single crystals have a good compositional homogeneity along the growth axis and their thermal conductivity was calculated from the measurements of thermal diffusivity, heat capacity and density. We have also recorded absorption, fluorescence spectra and measured fluorescence lifetimes as a function of the Tm content, we have found a very attractive fluorescence around the eye-safe wavelength of 1.9 mm which corresponds to a 3F4 3H6 transition of Tm3+.

本文言語English
ページ(範囲)1390-1393
ページ数4
ジャーナルOptical Materials
29
11
DOI
出版ステータスPublished - 2007 7

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 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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