Ion-Beam Induced Luminescence and Damage of Er<sub>2</sub>O<sub>3</sub>

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  • KATO Daiji
    Fusion Systems Research Division, Department of Helical Plasma Research, National Institute for Fusion Science
  • SAKAUE Hiroyuki A.
    Fusion Systems Research Division, Department of Helical Plasma Research, National Institute for Fusion Science
  • MURAKAMI Izumi
    Fusion Systems Research Division, Department of Helical Plasma Research, National Institute for Fusion Science
  • TANAKA Teruya
    Fusion Systems Research Division, Department of Helical Plasma Research, National Institute for Fusion Science
  • MUROGA Takeo
    Fusion Systems Research Division, Department of Helical Plasma Research, National Institute for Fusion Science
  • SAGARA Akio
    Fusion Systems Research Division, Department of Helical Plasma Research, National Institute for Fusion Science

抄録

Ion-beam induced luminescence of sintered Er2O3 samples irradiated by Ar+ ion-beams was measured in a visible range. In this experiment, three emission bands were observed at 500-520, 540-570, and 640-690 nm. The measured luminescence band at 640-690 nm is resolved into Lorentzian Stark component having a ∼1012 Hz width in frequency. Center wavelengths of the Stark components agree with those of intra-4f transitions of Er3+(4f11) ions situated at C2 symmetry cation sites in pure Er2O3. However, resonance broadening due to nearby Er3+ in the crystal accounts only 1% of the total width. Depopulation of the crystalline oxide in irradiated regions is inferred from decreasing intensity of the emission band at 640-690 nm during continuous irradiation. The emission bands at 500-520 and 540-570 nm still remained in heavily damaged samples look similar with those observed with a metallic Er target.

収録刊行物

  • Plasma and Fusion Research

    Plasma and Fusion Research 7 (0), 2405043-2405043, 2012

    一般社団法人 プラズマ・核融合学会

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