摘要
从光与物质相互作用的微观机理出发,综合考虑了在线低辐射镀膜玻璃(Low-E玻璃)功能层材料中自由电子和束缚电子与光的相互作用,采用双振子模型描述了在线Low-E玻璃功能层材料的色散特性.用双振子模型所得出的理论公式对在线Low-E玻璃的透射谱进行了拟合,得到了Low-E玻璃功能层的光学常量.结果表明,双振子模型比Drude模型可以更准确描述在线Low-E玻璃功能层材料的光学特性,在可见光低频区和红外波段,用Drude模型描述在线Low-E玻璃功能层材料的光学特性也能得到较好的结果.
Based on the micro-mechanism of interaction between light and substance, the two-oscillator model which represents the sum of the contributions of free electrons and bound electrons was used to characterize the dispersion characteristics of functional coating of online Low-E glass. The optical constants of functional coating of online Low-E glass were obtained by fitting the measured transmission spectrum using theoretical formula derived from the two-oscillator model. The fitting results show that the two-oscillator model is preferable to the Drude model to characterize the optical properties of functional coating of online Low-E glass. Good fitting results can also be obtained using the Drude model in the infrared region and the low frequency range of the visible region.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2008年第3期473-477,共5页
Acta Photonica Sinica
基金
国家自然科学基金(60544005)资助