In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 52, No. 12R ( 2013-12-01), p. 122501-
Abstract:
The energy levels associated with structural models of different valence states of Bi ions in Bi-doped silica optical fiber are investigated using the density functional theory of quantum-chemical calculation. The Bi 5+ , Bi 3+ , and Bi + local structure models with and without Al ion are analyzed and compared with respect to their fluorescence characteristics. The result reveals that the special fluorescence effect possibly comes from Bi 5+ and/or Bi 3+ ions. Bi 5+ ions may combine with Al ions that activate the luminescence center of Bi 5+ ions. Furthermore, the distinctive fluorescence bands are efficiently generated by the coupling effect between Bi 5+ and Al 3+ ions. The fluorescence of Bi 3+ ions may come from the Bi 3+ ions with Al-free ion. Fluorescence of Bi + ions may exist, but its contribution to the fluorescence is nominal.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.7567/JJAP.52.122501
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2013
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
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