论文标题
在单次高能量飞秒激光辐照的火山口光谱表征的二甲基丙烯酸酯聚合物掺杂的等离子金纳米棒的二甲基丙烯酸酯聚合物
Raman spectroscopic characterization of crater walls formed upon single-shot high energy femtosecond laser irradiation of dimethacrylate polymer doped with plasmonic gold nanorods
论文作者
论文摘要
在辐照后用血浆金纳米棒掺杂的尿烷二甲基丙烯酸酯的聚合物形成的键合构型，并通过拉曼光谱学研究了单发高能量的激光脉冲。在拉曼光谱的2000-2500 cm-1区域中检测到了新的拉曼条带，其强度表现出对等离激元纳米颗粒浓度的强烈依赖性和激光脉冲的能量。基于聚合物拉曼频率的模型计算，这些峰归因于碳占个体和氮 - 脱氧于碳的振动。它们的外观可能表明由等离激元纳米颗粒扩增的超长激光场激发的聚合物中发生了核反应。
The bonding configuration of the crater walls formed in urethane dimethacrylate-based polymer doped with plasmonic gold nanorods upon irradiation with a single-shot high-energy femtosecond laser pulse has been studied by Raman spectroscopy. New Raman bands were detected in the 2000-2500 cm-1 region of the Raman spectrum the intensities of which showed strong dependence on the concentration of the plasmonic nanoparticles and the energy of the laser pulse. Based on model calculations of the Raman frequencies of the polymer these peaks were attributed to carbon-deuterium and nitrogen-deuterium vibrations. Their appearance might indicate the occurrence of nuclear reactions in the polymer excited by the ultra-strong laser field amplified by the plasmonic nanoparticles.
