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Spectroscopic and stimulated emission characteristics of Nd3+ in transparent glass ceramic embedding β-YF3 nanocrystals

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6 Author(s)
Chen, Daqin ; State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China ; Wang, Yuansheng ; Ma, En ; Yu, Yunlong
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A transparent SiO2Al2O3LiFYF3 glass ceramic doped with Nd3+ was fabricated by melt quenching and subsequent heating. X-ray diffraction and transmission electron microscope results demonstrated that orthorhombic β-YF3 nanocrystals with a mean size of 23 nm were homogeneously precipitated among the glass matrix. Confirmed by the energy dispersive x-ray spectroscopy measurements, the crystal-like absorption and emission of Nd3+ indicated the partition of Nd3+ into YF3 nanocrystals in the glass ceramic. Detailed characterizations of the Stark components of the 4I9/2, 4I11/2, and 4I13/2 manifolds were performed using the low temperature fluorescence spectra for 4F3/24I9/2, 4F3/24I11/2, and 4F3/24I13/2 transitions of Nd3+ in the glass ceramic. The stimulated emission cross sections of the 4F3/24I11/2 intermanifold transition and the 4F3/2(R1)→4I11/2(Y1) inter-Stark transition were determined to be 7.24×10-20 and 11.55×10-20 cm2, respectively, being preferable to those of Nd3+-doped laser glasses and glass ceramic embedding (Pb,Cd)F2 nanocrystals.

Published in:

Journal of Applied Physics  (Volume:102 ,  Issue: 2 )

Date of Publication:

Jul 2007

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