Study of the relationship between porous ratio and effective index in nanoporous film |
| |
Authors: | Yang Zhenyu Zhu Daqing Lu Dongsheng Zhao Ming Ning Na Liu Yongjun |
| |
Affiliation: | (1) State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China; |
| |
Abstract: | In this paper, a theory model called 'composite media in parallel' is proposed to explain the connection between the porous ratio and effective index of the nanoporous film. This model comes from theory of composite media's effective dielectric constant in solid material field. From this model, a function relationship between the porous ratio and effective index of the nanoporous film is obtained. And the Finite Difference Time Domain (FDTD) method is used to construct the model of nanoporous film, simulate the propagation of lightwave in the film and calculate some effective indices according to different ratios of pore. Compared with Maxwell Garnett theory model and Bruggeman theory model, it is found that the function curve based on the composite media in parallel model is most consistent with the results simulated by FDTD method. |
| |
Keywords: | effective index FDTD method nanoporous film porous ratio |
本文献已被 SpringerLink 等数据库收录! |
|