钠米金属颗粒膜的光学非线性

钠米金属颗粒膜的光学非线性 OPTICAL NONLINEARITIES OF SMALL METALLIC PARTICLE FILM 任大志 Ren Dazhi 1 2 3 first-author 熊贵光 Xiong Guiguang 1 2 3 武汉大学物理学系 武汉大学物理学系 Department of Physics,Wuhan University Department of Physics,Wuhan University 武汉大学物理学系,武汉 武汉大学物理学系,武汉 ,430072 ,430072 应用有效介质理论和非线性光学的基本原理,分析了小尺寸（nm）金属颗粒膜的等离子体激元共振增强效应,给出了描述局域场增强的表达式,根据实验结果,计算和讨论了局域场增强因子的质量厚度并得到金属微粒尺寸的相关特征。 The plasmon resonance enhancement in the metallic particle films has been analyzed and a new expression for describing the local field enhancement has been presented , by employing the effective medium theory and the principle of nonlinear optics.The local field enhancement factor related to mass thickness and the metallic particle size has been calculated and discussed by using the experiment results. 金属颗粒膜 非线性光学 局域场增强 表面等离子体激元共振 metallic particle films nonlinear optics local field enhancement surface plasmon resonance O437 国家自然科学基金(61672102) 1996-01-01 2021-04-01 1