Growth and optical properties of Yb3+ and Tb3+ codoped BaB2O4 crystals

Growth and optical properties of Yb3+ and Tb3+ codoped BaB2O4 crystals

Optical absorption and luminescence spectra of ytterbium and terbium codoped BaB2O4 (β-BBO and α-BBO) crystals grown in different conditions have been studied. Low-temperature absorption peaks were observed in all samples. Features related to rare earth ions were observed in absorption and luminesce...

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Veröffentlicht in:Optics communications 2012-11, Vol.285 (24), p.5205-5209
Hauptverfasser: Solntsev, V.P., Yelisseyev, A.P., Bekker, T.B., Kokh, A.E., Stonoga, S. Yu, Davydov, A.V., Maillard, A.
Format: Artikel
Sprache:eng
Schlagworte:
Crystal growth
Engineering Sciences
Luminescence
Optical absorption
Optical properties
Yb3+, Tb3+:BaB2O4 crystal
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Zusammenfassung:Optical absorption and luminescence spectra of ytterbium and terbium codoped BaB2O4 (β-BBO and α-BBO) crystals grown in different conditions have been studied. Low-temperature absorption peaks were observed in all samples. Features related to rare earth ions were observed in absorption and luminescence spectra. Absorption and emission in the range 860–1000nm are caused by 2F5/2↔2F7/2 transitions in Yb3+ ions. Emission peaks at 500, 550, 590 and 630nm correspond to 5D4→7F6, 7F5, 7F4, and 7F3 transitions of Tb3+ ions, respectively. The probable reasons of variations in spectroscopic features related to Yb in BBO host are discussed. It has been shown that the replacement of Ва2+ by Yb3+ in the lattice of ВаВ2О4 results in the decrease in the symmetry of oxygen surrounding of Yb3+.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2012.07.102