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Y. Urata, K. Akagawa, S. Wada, H. Tashiro, S.J. Suh1), D.H. Yoon1), T. Fukuda2)
The Institute of Physical and Chemical
Research, Photodynamics Research Center, Japan
1)Department of Metallurgical
Engineering, Sung Kyun Kwan University, Korea
2)Institute for Materials Research,
Tohoku University, Japan
Growth and Optical Properties of Tm:GdVO4 Single Crystal
Thulium-doped gadolinium vanadate (Tm:GdVO4) single crystal has been successfully grown by a modified Czochralski (CZ) technique. Effective distribution coefficient of Tm was determined to be 0.74. Absorption characterization was performed in the 800 nm region and the maximum absorption peak was found at 799 nm for p polarization. Fluorescence spectra for tuning at the maximum absorption were obtained around 1.8-2.0µm region with 100 nm bandwidth. This suggests that a Tm:GdVO4 crystal is expected as a new promising LD pumped solid-state laser in the 2µm region.
Keywords : vanadate, single crystal, optical property, absorption, fluorescence, solid-state laser
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