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ID 11541
JaLCDOI
Sort Key
14
タイトル(別表記)
Upconversion property and light scattering in Tm(3+)-doped glass-ceramics
フルテキストURL
著者
三浦 嘉也 岡山大学
丁 勇 岡山大学
村田 隆 岡山大学
姫井 裕助 岡山大学
抄録
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.
キーワード
Optical scattering
Glass-ceramics
Oxyfluoride glass
Microcrystallite
Upconversion fluorescence
出版物タイトル
岡山大学環境理工学部研究報告
発行日
2002-03-22
7巻
1号
出版者
岡山大学環境理工学部
出版者(別表記)
Faculty of Environmental Science and Technology, Okayama University
開始ページ
119
終了ページ
125
ISSN
1341-9099
NCID
AN10529213
資料タイプ
紀要論文
OAI-PMH Set
岡山大学
言語
Japanese
論文のバージョン
publisher
NAID
Eprints Journal Name
fest