Tm3+含有結晶化ガラスのアップコンバージョン特性と光散乱  [in Japanese] Upconversion property and light scattering in Tm(3+)-doped glass-ceramics  [in Japanese]

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Abstract

Glass-ceramics containing Pb(x)Cd(1-x)F(2) microcrystallites were prepared through heat treatment of Tm(3+)/Yb(3+)doped SiO(2)-Al(2)O(3)-PbF(2) glasses. The crystallite size was controlled by varying the heat-treatment time. By changing glass composition, two types of strong optical scattering, Rayleigh and Mie scattering modes were observed for the glass ceramics. In the case of Rayleigh scattering, the scattering region expanded to the long-wavelength side with increasing the heat-treatment time. On the other hand, in the case of Mie scattering, the region were hardly dependent on wavelength, and visible light was widely scattered. It was argued that the different scattering phenomena were caused by the different size of the crystallites or their morphogical texture. Furthermore, the glass-ceramics with strong optical scattering showed higher upconversion fluorescence intensity than the matrix glass. The mechanisms for the enhanced upconversion due to the scattering were discussed.

Journal

  • Journal of the Faculty of Environmental Science and Technology,Okayama University

    Journal of the Faculty of Environmental Science and Technology,Okayama University 7(1), 119-125, 2002-03

    岡山大学環境理工学部

Codes

  • NII Article ID (NAID)
    120002313480
  • NII NACSIS-CAT ID (NCID)
    AN10529213
  • Text Lang
    JPN
  • Article Type
    departmental bulletin paper
  • Journal Type
    大学紀要
  • ISSN
    13419099
  • NDL Article ID
    6237032
  • NDL Source Classification
    ZV1(一般学術誌--一般学術誌・大学紀要)
  • NDL Call No.
    Z22-B196
  • Data Source
    NDL  IR 
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