Journal
BULLETIN OF MATERIALS SCIENCE
Volume 32, Issue 2, Pages 183-186Publisher
INDIAN ACAD SCIENCES
DOI: 10.1007/s12034-009-0028-6
Keywords
Nd3+-doped LiNbO3; crystal growth; spectral properties; Bridgman method
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Funding
- K C Wong Magna Fund in Ningbo University
- Foundation of Ningbo University [xk2006]
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The growth of Nd3+ doped lithium niobate crystals using Bridgman method has been reported in this paper. By means of the optimum conditions such as proper feed materials, sealed platinum crucibles, growth rate of 1-1.5 mm/h and temperature gradient of 30-35 degrees C/cm across the solid-liquid interface under the furnace temperature of 1300 degrees C, single crystals containing Nd3+ ion with 0.54 mol% concentration were obtained. X-ray diffraction and ICP-AES were used to characterize the crystals and its composition. The absorption, emission and fluorescence lifetime are also measured. Based on the Judd-Ofelt theory, we obtained the optical parameters of the crystal such as the luminescent quantum efficiency, the radioactive lifetimes, the branching ratios and the emission cross-section.
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