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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 >Tm3+ doped Bi2O3-GeO2 glasses with silver nanoparticles for optical amplifiers in the short-wave-infrared-region
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Tm3+ doped Bi2O3-GeO2 glasses with silver nanoparticles for optical amplifiers in the short-wave-infrared-region

机译：TM3 +掺杂Bi2O3-Geo2玻璃，用于短波红外区域光放大器的银纳米粒子

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摘要

We synthesized the Bi2O3-GeO2 (BGO) glass doped with thulium ions (Tm3+) and investigate the influence of embedded silver nanoparticles (Ag-NPs) on the samples photoluminescence (PL) and on the process of energy transfer (ET) among bismuth ions and Tm3+. The samples were prepared by the melt-quenching method with and without Tm2O3 and/or AgNO3. Under excitation at 808 nm the pure BGO glass presented PL from 1100 to 1500 nm, characteristic of the bismuth ions, Bi+, while the samples with Tm3+ exhibited a strong PL from 1300 to 1600 nm. The Bi+ emission was quenched due to ET from the bismuth centers to the Tm3+ and the emitted intensity at 1470 nm increased by more than 1000% due to the presence of Tm3+. Moreover, the samples with Tm3+ and Ag-NPs presented further PL enhancement of approximate to 56% at 1470 nm for the samples heat-treated during 2 h. Optical gain measurements using 2 mm thick samples were performed with a probe beam at 1470 nm and the pump beam at 808 nm. A 4.5 dB/cm gain in the presence of Ag-NPs was measured when the pump laser power was 6W. The Ag-NPs contributed to 500% of gain enhancement. The present results illustrate the appropriateness of the BGO glass with Tm3+ and Ag-NPs for obtaining intense PL and optical amplification in the near-infrared. (C) 2018 Elsevier B.V. All rights reserved.
机译：我们合成掺杂有硫粒子（TM3 +）的Bi2O3-Geo2（BGO）玻璃，并研究嵌入的银纳米粒子（Ag-NPS）对样品光致发光（PL）的影响以及铋离子中的能量转移（ET）的过程和tm3 +。通过熔融猝灭法制和不含TM2O3和/或AgNO 3制备样品。在808nm的激发下，纯BGO玻璃呈现来自1100至1500nm的PL，铋离子的特征，Bi +，而具有Tm3 +的样品从1300至1600nm上表现出强PL。由于从铋中心到TM3 +，Bi +排放被淬灭，并且由于TM3 +，1470nm的发射强度增加了1000％以上。此外，具有TM3 +和AG-NPS的样品在1470nm下呈现近似为56％的PL，用于在2小时内进行热处理的样品。使用2mm厚样品的光学增益测量用1470nm的探针光束和808nm处的泵浦进行。当泵激光功率为6W时测量AG-NPS存在的4.5dB / cm增益。 AG-NPS贡献了500％的增益增强。本结果说明了BGO玻璃与TM3 +和AG-NPS的适当性，用于获得近红外线中的强孔PL和光学放大。 （c）2018年elestvier b.v.保留所有权利。

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