Host dependent frequency upconversion of
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Shiqing Xu; Dawei Fang; Zaixuan Zhang; Liyan Zhang; Shilong Zhao; Zhonghong Jian
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Article
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2005
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Elsevier Science
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English
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The upconversion luminescence properties of Yb 3+ /Tm 3+ -codoped oxyfluoride tellurite glasses under 980 nm excitation are investigated experimentally. The intense blue and relatively weak red emissions centered at 475 and 649 nm corresponding to the transitions 1 G 4 โ 3 H 6 and 1 G 4 โ 3 H 4 of T