Fabrication and spectroscopic properties of Yb3+-doped silica glasses using the sol-gel method
2012 ◽
Vol 10
(8)
◽
pp. 081601-81604
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1996 ◽
Vol 68
(2-4)
◽
pp. 187-192
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Nature and optical behaviour of heavily europium-doped silica glasses obtained by the sol–gel method
2002 ◽
Vol 298
(2-3)
◽
pp. 146-152
◽
2019 ◽
1997 ◽
Vol 404
(1-2)
◽
pp. 137-140
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