Enhanced green upconversion luminescence in Yb/Tb-codoped silica fiber based on glass phase-separated method
Applied Physics A: Materials Science and Processing, ISSN: 1432-0630, Vol: 120, Issue: 4, Page: 1315-1322
2015
- 10Citations
- 8Captures
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Article Description
We reported on an Yb/Tb-codoped silica fiber with a large fiber core prepared from nanoporous silica glass based on glass phase-separated method. The measured refractive index profile indicated an excellent homogeneity of the doped active fiber core. Intense green upconversion emission from Tb centered at 543 nm was obtained in the Yb/Tb-codoped silica fiber under 976-nm excitation. It is suggested that the green upconversion emission is dominated by a two-photon absorption process. It is found that the Al ions as a modifier can facilitate the energy transfer from Yb to Tb in the porous glass fiber. The energy transfer efficiency from Yb to Tb was calculated.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84939264589&origin=inward; http://dx.doi.org/10.1007/s00339-015-9308-8; http://link.springer.com/10.1007/s00339-015-9308-8; http://link.springer.com/content/pdf/10.1007/s00339-015-9308-8; http://link.springer.com/content/pdf/10.1007/s00339-015-9308-8.pdf; http://link.springer.com/article/10.1007/s00339-015-9308-8/fulltext.html; https://dx.doi.org/10.1007/s00339-015-9308-8; https://link.springer.com/article/10.1007/s00339-015-9308-8
Springer Science and Business Media LLC
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