17 January 2005 Optical properties of Nd3+ ions in transparent PLZT ceramics
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Abstract
Optical absorption, excitation and emission spectra of Nd3+ in PLZT ceramics have been studied. Based on the Judd-Ofelt (J-O) theory, the J-O intensity parameters are calculated to be Ω2=0.7199x10-20 cm2, Ω4=1.045x10-20 cm2, Ω6=0.9234x10-20 cm2 from the absorption spectrum of Nd3+-doped PLZT. The J-O intensity parameters have been used to calculate the radiative lifetime (0.385 ms) of the excited 4F3/2 level. The stimulated emission cross-sections and the fluorescence branch ratios for the 4F3/2 -> 4IJ transitions are also evaluated. We have also measured 1.068 mm fluorescence lifetime (0.168 ms) and calculated its Quantum efficiency (0.44). Under 807 nm excitation, the green and red upconversion luminescence from Nd3+ centers in the ceramic was observed at room temperature. Analysis reveals that Nd3+-doped PLZT is promising for the use as efficient optically amplifying or zero-loss electro-optical devices in telecommunication networks.
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Zhiqiang Zheng, Zhiqiang Zheng, Hai Ming, Hai Ming, Jiwen Yang, Jiwen Yang, Baozeng Li, Baozeng Li, Hua Jiang, Hua Jiang, Xuesheng Chen, Xuesheng Chen, Jianping Xie, Jianping Xie, } "Optical properties of Nd3+ ions in transparent PLZT ceramics", Proc. SPIE 5644, Optoelectronic Devices and Integration, (17 January 2005); doi: 10.1117/12.572669; https://doi.org/10.1117/12.572669
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