Characterization of Er3+‐doped glasses by fluorescence line narrowing
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1980 ◽
Vol 40
(1-3)
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pp. 469-480
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1995 ◽
Vol 7
(49)
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pp. 9643-9656
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1999 ◽
Vol 12
(9)
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pp. 789-795
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1997 ◽
Vol 781
(1-2)
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pp. 73-80
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1982 ◽