Characterizations of Nanodiamond Composite Film for Photonics Applications

Aseel A. Shakaty, J. Hmood, B. Mahdi
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Abstract

Due to its flexibility, small size and low cost, the nanomaterials films are widely desired in optical applications. In this study, a solid nanodiamond (ND) film was fabricated and characterized for photonics applications. The nanocomposite films were prepared by drop casting method where ND was embedded into poly Vinylidene fluoride-trifluoroethylene (PVDF-TrFE) as a host polymer. Both physical and optical properties of the prepared film were investigated. To analyze the structure of fabricated ND-PVDF-TrFE film, various measurement methods were adopted, including a field emission scanning electron microscopy (FESEM), Fourier transform spectroscopy (FTIR), and x-ray diffraction. The nonlinear absorption property of ND-PVDF-TrFE film was studied by balanced twin detector technique (BTDT) using mode-locked fiber laser with pulse width of 1.4 ps at wavelength of 1566 nm. The results showed that the saturable-absorption features of ND-PVDF-TrFE film possess a good nonlinear performance. Furthermore, a good nonlinearity with a high modulation depth makes the ND-PVDF-TrFE film a good candidate to use in many photonics systems such as saturable absorber (SA) in passive Q-switched or mode-locked fiber lasers.
光子学应用纳米金刚石复合薄膜的表征
纳米材料薄膜具有柔韧性好、体积小、成本低等优点,在光学领域有着广泛的应用前景。在本研究中,制备了一种固体纳米金刚石(ND)薄膜,并对其进行了表征。将ND包埋在聚偏氟乙烯-三氟乙烯(PVDF-TrFE)中,采用滴铸法制备了纳米复合膜。研究了所制备薄膜的物理性能和光学性能。为了分析制备的ND-PVDF-TrFE薄膜的结构,采用了多种测量方法,包括场发射扫描电子显微镜(FESEM)、傅里叶变换光谱(FTIR)和x射线衍射。利用脉冲宽度为1.4 ps的锁模光纤激光器,在1566 nm波长处,利用平衡双探测器技术(BTDT)研究了ND-PVDF-TrFE薄膜的非线性吸收特性。结果表明,ND-PVDF-TrFE薄膜的饱和吸收特性具有良好的非线性性能。此外,ND-PVDF-TrFE薄膜具有良好的非线性和高调制深度,是许多光子系统的良好候选者,例如被动调q或锁模光纤激光器中的可饱和吸收器(SA)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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