量子电子学报, 2000, 17 (3): 246, 网络出版: 2006-05-15
三组份金属-介质复合体系的弥散结构模型与有效介电函数
Dispersed Microstructure Model and Effective Dielectric Function for Three-component Metal-dielectric Composites
金属颗粒 三组份复合体系 有效介电函数 共振吸收 nano metallic particles three-componentcomposite materials effective medium theory resonance absorption
摘要
本文提出了三组份金属颗粒-介质复合体系的一种弥散结构模型,推导出其有效介电函数的关系式,利用该关系式可以很方便地求解出多组份复合体系的有效介电函数值。对(Au,Ag)/SiO<sub>2</sub>三组份复合体系的光吸收系数进行了理论计算,计算结果给出了多共振吸收峰的存在,与实验测量的光吸收谱进行了对比。
Abstract
The dispersedmicrostructure model for three-component metal-dielectric composite materials wasestablished, a convenient formula for calculating the effective dielectric function ofmulti-component composites was deduced. The theoretical calculations about the opticalabsorptive spectra of (Au,Ag)/SiO<sub>2</sub>composite films predicted the existence ofmulti-resonance absorptive peaks, which were compared with the measured absorptivespectra.
王取泉, 杨柏峰, 田德诚, 熊贵光, 周正国. 三组份金属-介质复合体系的弥散结构模型与有效介电函数[J]. 量子电子学报, 2000, 17(3): 246. 王取泉, 杨柏峰, 田德诚, 熊贵光, 周正国. Dispersed Microstructure Model and Effective Dielectric Function for Three-component Metal-dielectric Composites[J]. Chinese Journal of Quantum Electronics, 2000, 17(3): 246.
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