金属颗粒复合膜的非线性响应特征

金属颗粒复合膜的非线性响应特征 NONLINEAR OPTICAL RESPONSE CHARACTERISTICS OF METALLIC PARTICLED COMPOSITE FILMS 陈志宏 Chen Zhihong 1 first-author 熊贵光 Xiong Guiguang 1 池桂梅 Chi Guimei 1 赵纯 Zhao Chun 1 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 通过利用介电常数为εｍ的主体介质中悬浮着由金属核与非线性电介壳层组成的球状颗粒的模型，具体研究了Ａｕ、Ａｇ、Ｃｕ三种金属颗粒复合膜的非线性光学响应特征．在表面胞质团共振附近，光学非线性增强．通过改变复合膜的结构参数，得到非线性的最优结构复合膜． The nonlinear optical response characteristics of Au、Ag and Cu particled composite films have been studied.It is shown that near the surface plasmon resonance,the optical nonlinearities can be enormously enhanced.By tuning the structrue parameters of the composite films which are formed by coated particles with metallic cores and nonlinear dielectric shells,the obvious nonlinear optical response characteristics can be obtained. 金属颗粒复合膜 非线性增强 结构参数 metallic particled composite films nonlinear enhancement structrue parameters O484 国家教委博士点基金,湖北省自然科学基金 1999-01-01 2021-04-01 1