Optical hole burning properties of europium-doped calcium bromide-based aluminoborate glasses

The calcium bromide-based aluminoborate glass doped with Eu 2O 3 was prepared at 1473 K in ambient atmosphere. Characteristic electron spin resonance features ( g = 2.0, 2.8, 3.4, 4.7, and 6.0) gave the direct evidence for the presence of Eu 2+ ions, suggesting that the self-reduction from Eu 3+ to...

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Bibliographic Details
Published in:Journal of alloys and compounds 2008-06, Vol.457 (1), p.L6-L8
Main Authors: Liang, Hailian, Hanzawa, Hiromasa, Horikawa, Takashi, Machida, Ken-ichi
Format: Article
Language:English
Subjects:
Amorphous materials, glasses and other disordered solids
CaBr 2-based glass
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Eu 3+/Eu 2
Exact sciences and technology
Hole burning
Melt quenching
Optical memory
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Photoluminescence
Physics
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Summary:The calcium bromide-based aluminoborate glass doped with Eu 2O 3 was prepared at 1473 K in ambient atmosphere. Characteristic electron spin resonance features ( g = 2.0, 2.8, 3.4, 4.7, and 6.0) gave the direct evidence for the presence of Eu 2+ ions, suggesting that the self-reduction from Eu 3+ to Eu 2+ ions partially took place during the process of glass formation. Persistent spectral hole burning was observed from 10 to 300 K. The hole burning mechanism as well as the self-reduction for the Eu 3+ ions was discussed.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2007.03.010