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首页> 外文期刊>Journal of Sol-Gel Science and Technology >Room Temperature Persistent Spectral Hole-Burning in Sol-Gel-Derived Glasses Doped with Eu~3+ Ions
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Room Temperature Persistent Spectral Hole-Burning in Sol-Gel-Derived Glasses Doped with Eu~3+ Ions

机译:掺Eu〜3 +离子的溶胶凝胶玻璃的室温持久光谱孔烧

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摘要

Persistent spectral hole burning was investigated for the Eu~3+ ions-doped glasses prepared by a sol-gel method.For the glasses containing OH bonds,persistent spectalhole is burned by the laser-induced rearrangement of the OH bonds surrounding the Eu~3+ ions,which are heated under H_2 gas or irradiated with X-ray exhibit room temperature PSHB.The depth of the burnt hole increses as the Al_2O_3 content increases.The hole-formation could be explained by a model of the exitation of te Eu~3+ ions and subsequent electron transfer with the excited [Eu~3+]~- or oxyen-defet centers in the Al-O bonds.The burnt holes are more stable compared with those burned by the rearrangement of te OH bonds.
机译:研究了通过溶胶-凝胶法制备的Eu〜3 +离子掺杂玻璃的持久光谱孔燃烧。对于含有OH键的玻璃,通过激光诱导Eu〜3周围的OH键重排,持久的光谱孔被燃烧在H_2气体中加热或用X射线辐照的+离子具有室温PSHB。随着Al_2O_3含量的增加,烧成孔的深度会增加。可以用te Eu〜的出射模型来解释孔的形成3+离子和随后的电子以Al-O键中激发的[Eu〜3 +]〜-或氧键定义的中心转移。与te OH键重排相比,烧成的空穴更稳定。

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