Erbium-doped glass nanoparticle embedded polymer thin films using femtosecond pulsed laser deposition
Erbium-doped glass nanoparticle embedded polymer thin films using femtosecond pulsed laser deposition
复制标题
DOI：
10.1364/ome.8.001997
复制
发表时间：
2018-07
影响因子：
2.8
通讯作者：
E. K. Barimah;M. Ziarko;N. Bamiedakis;I. White;R. Penty;G. Jose
中科院分区：
文献类型：
--
作者：
E. K. Barimah;M. Ziarko;N. Bamiedakis;I. White;R. Penty;G. Jose
掺杂稀土离子的聚合物材料是形成低成本集成光放大器的有希望的候选材料。然而，这些不同材料的集成和高质量掺铒聚合物薄膜的形成存在重大的技术挑战。因此，在本文中，我们首次提出使用飞秒（fs）脉冲激光沉积（PLD）制备掺铒锌亚碲酸钠（Er-TZN）玻璃纳米粒子（NP）改性的聚合物薄层，并表征其基本性能。使用扫描和透射电子显微镜（SEM 和 TEM）以及 X 射线衍射（XRD）评估用该方法生产的样品的表面形貌以及成分和结构特征，同时在室温下在 980 nm 激光二极管激发下进行光致发光（PL）测量。研究表明掺铒 TZN 纳米粒子成功集成到聚合物层中。根据制造参数，所获得的平均 NP 尺寸在 12 至 21 nm 范围内，同时从样品中观察到与 Er3+ 的 4I13/2 →4I15/2 跃迁相对应的 1534 nm 处的宽 PL 发射。 PL 光谱的半峰全宽 (FWHM) 约为 39 nm，而荧光寿命测得在 3.52 至 4.18 ms 范围内。获得的结果清楚地证明了使用 fs-PLD 用玻璃纳米粒子有效掺杂聚合物层的潜力，并且是成功形成混合聚合物-玻璃波导放大器的第一步。
Polymer materials doped with rare-earth ions are promising candidates for the formation of low-cost integrated optical amplifiers. However, there are significant technical challenges associated with the integration of these dissimilar materials and the formation of high-quality Er-doped polymer films. In this paper, therefore, we present for the first time the fabrication of polymer thin layers modified with erbium-doped sodium zinc tellurite (Er-TZN) glass nanoparticles (NPs) using femtosecond (fs) pulsed laser deposition (PLD) and the characterisation of their basic properties. The surface morphology and the compositional and structural characteristics of the samples produced with this method are evaluated using scanning and transmission electron microscopy (SEM and TEM) and X-ray diffraction (XRD), while photoluminescence (PL) measurements are carried out at room temperature under a 980 nm laser diode excitation. The studies indicate that the Er-doped TZN NPs are successfully integrated in the polymer layers. The obtained average NP size is measured to be in the range of 12 to 21 nm depending on the fabrication parameters, while broad PL emission at 1534 nm that corresponds to the 4I13/2 →4I15/2 transition of Er3+ is observed from the samples. The full-width at half-maximum (FWHM) of the PL spectra is found to be ~39 nm while the fluorescence lifetime is measured to be in the range of 3.52 to 4.18 ms. The obtained results clearly demonstrate the potential to efficiently dope polymer layers with glass NPs using fs-PLD and is a first step towards the successful formation of hybrid polymer-glass waveguide amplifiers.