Holmium doped barium gallo-germanate glasses for near-infrared luminescence at 2000 nm
Joanna Pisarska , Marta Kuwik , Agata Górny , Marcin Kochanowicz , Jacek Mariusz Żmojda , Jan Dorosz , Dominik Dorosz , Maciej Sitarz , Wojciech Andrzej Pisarski
AbstractHolmium singly doped barium gallo-germanate glasses have been studied for near-infrared luminescence at 2000 nm. Near-infrared luminescence spectra corresponding to 5I7 → 5I8 transition of trivalent holmium and their decays have been examined as a function of BaF2 and activator (Ho3+) concentration. The integrated intensities of luminescence bands increase up to 0.5 mol% Ho3+ and then reduce with further increasing activator (Ho3+) concentration. Luminescence linewidths increase with increasing Ho3+ concentration, but remain nearly unchanged with BaF2 content. The glass samples exhibit the shortened decay curves with increasing activator concentration, which is due to the presence of energy transfer between Ho3+ ions. The luminescence lifetime 5I7 (Ho3+) is found to be maximum at 5 mol% of BaF2.
|Journal series||Journal of Luminescence, ISSN 0022-2313, e-ISSN 1872-7883, (N/A 70 pkt)|
|Publication size in sheets||0.5|
|Keywords in English||glasses, Ho3+ ions, near-infrared luminescence|
|ASJC Classification||; ; ; ;|
|Internal identifier||ROC 19-20|
|Score||= 70.0, 17-02-2020, ArticleFromJournal|
|Publication indicators||: 2018 = 1.048; : 2018 = 2.961 (2) - 2018=2.692 (5)|
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