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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Effects of thermal annealing on spectroscopic properties of Eu~(3+) in Sr_(1-x)B_xNb_2O_6 films
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Effects of thermal annealing on spectroscopic properties of Eu~(3+) in Sr_(1-x)B_xNb_2O_6 films

机译：热退火对Sr_（1-x）B_xNb_2O_6薄膜中Eu〜（3+）光谱性质的影响

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摘要

Thermal annealing influence on properties ofstrontium-barium niobate (SBN) films doped with En~(3+) hasbeen studied using laser Spectroscopic methods. The Starksplittings of the ~5D_1 state and all the ~7F_J states are wellresolved only in the spectra from the annealed films, whereasthe spectra of Eu~(3+) in the as-deposited film is similar to thatin amorphous phases. Non-resonant fluorescence line narrowing(FLN) is observed only for the annealed film, which indicates acorrelation between the energy levels of Eu~(3+) ininhomogeneous line broadening. Annealing-inducedcrystallization of the as-deposited film also increases the ~5D_0fluorescence lifetime and allows hyperfine spectral hole burning.
机译：利用激光光谱法研究了热退火对掺有En〜（3+）的铌酸锶钡（SBN）薄膜性能的影响。 〜5D_1态和所有〜7F_J态的Starksplittings只能在退火膜的光谱中很好地分辨，而沉积后的膜中Eu〜（3+）的光谱与非晶相中的相似。仅在退火膜上观察到非共振荧光线变窄（FLN），这表明Eu〜（3+）的能级与非均匀线变宽之间存在相关性。退火诱导的沉积薄膜结晶也增加了〜5D_0荧光寿命，并允许超精细的光谱空穴燃烧。

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