Journal
QUANTUM ELECTRONICS
Volume 45, Issue 1, Pages 59-65Publisher
TURPION LTD
DOI: 10.1070/QE2015v045n01ABEH015624
Keywords
optical fibre; bismuth; bismuth centres; luminescence
Funding
- Russian Foundation for Basic Research [13-02-01320]
- RF President's Grants Council [NSh-6653.2014.2]
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We have studied UV excitation spectra of IR luminescence in bismuth-doped glasses of various compositions and obtained energy level diagrams of IR-emitting bismuth-related active centres (BACs) associated with silicon and germanium atoms up to similar to 5.2 eV over the ground level. A possible energy level diagram of the BACs in phosphosilicate glass has been proposed. The UV excitation peaks for the IR luminescence of the BACs in the glasses have been shown to considerably overlap with absorption bands of the Bi3+ ion, suggesting that Bi3+ may participate in BAC formation.
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