Doping concentration dependence on VUV luminescence of Tm:CaF2

Noriaki Kawaguchi, Takayuki Yanagida, Yoshisuke Futami, Yutaka Fujimoto, Kentaro Fukuda, Shinji Kajimoto, Hiroshi Fukumura, Shunsuke Kurosawa, Yuui Yokota, Akira Yoshikawa

研究成果: Article査読

7 被引用数 (Scopus)

抄録

Luminescence and scintillation properties of Tm3+ 0.1-15% doped CaF2 crystals were systematically investigated. The crystals were grown by a simple solidification method which allowed us to obtain single crystals conveniently. In X-ray induced radio luminescence spectra, the luminosity of the self-trapped-exciton (STE) emission of CaF2 at 270 nm decreased with increasing of Tm3+ concentration. The Tm 3+ 5d-4f transition based emission lines appeared at 175 nm (4f 115d high spin state (HS) → 3H6) and at 165 nm (low spin state (LS) to 3H6). Pulse height spectra were measured under α-ray irradiation by using vacuum ultra-violet (VUV) sensitive photomultiplier tube (PMT) R8778 and Tm3+ 0.1% doped specimen exhibited the highest light yield.

本文言語English
ページ(範囲)1898-1901
ページ数4
ジャーナルOptical Materials
35
11
DOI
出版ステータスPublished - 2013 9

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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