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Proceedings Paper

Up-conversion emission in Yb3+ sensitized YV04:Er3+ crystals
Author(s): Taiju Tsuboi; Yongfeng Ruan; Xiaoming Wang
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Paper Abstract

Up-conversion by Yb3+ sensitization in Er3+ doped YVO4 crystals has been studied under excitation with 976 nm laser diode. Up-converted (available in paper) emission bands are observed at 490, 547, 554, 660 and 670 nm at room temperature, together with down-converted Yb3+ emission at 1010 nm and Er3+ emission at 1470 - 1630 nm. Excited state absorption from the 4I11/2 state of Er3+ to the 4F7/2 state is observed in the Yb3+ emission spectrum. It is confirmed, from quadratic dependence on pump intensity, the up-conversion is induced by two-photon excitation process.

Paper Details

Date Published: 13 April 2000
PDF: 8 pages
Proc. SPIE 3942, Rare-Earth-Doped Materials and Devices IV, (13 April 2000); doi: 10.1117/12.382847
Show Author Affiliations
Taiju Tsuboi, Kyoto Sangyo Univ. (Japan)
Yongfeng Ruan, Tianjin Univ. (China)
Xiaoming Wang, Institute of Physics (China)

Published in SPIE Proceedings Vol. 3942:
Rare-Earth-Doped Materials and Devices IV
Shibin Jiang, Editor(s)

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