Frequency upconversion mechanism in Ho3+/Yb3+-codoped TeO2–TiO2–La2O3 glasses
2006 ◽
Vol 117
(2)
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pp. 179-186
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2006 ◽
Vol 352
(32-35)
◽
pp. 3636-3641
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Keyword(s):
2005 ◽
Vol 22
(4)
◽
pp. 952-955
◽
Keyword(s):