Three-photon-excited upconversion luminescence of niobium ions doped silicate glass by a femtosecond laser irradiation

Huidan Zeng, Juan Song, Danping Chen, Shuanglong Yuan, Xiongwei Jiang, Ya Cheng, Yunxia Yang, Guorong Chen

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

We report on the bluish green upconversion luminescence of niobium ions doped silicate glass by a femtosecond laser irradiation. The dependence of the fluorescence intensity on the pump power density of laser indicates that the conversion of infrared irradiation to visible emission is dominated by three-photon excitation process. We suggest that the charge transfer from O2-to Nb5+can efficiently contribute to the bluish green emission. The results indicate that transition metal ions without d electrons play an important role in fields of optics when embedded into silicate glass matrix.

Original languageEnglish
Pages (from-to)6502-6506
Number of pages5
JournalOptics Express
Volume16
Issue number9
DOIs
StatePublished - 28 Apr 2008
Externally publishedYes

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