Influence of Light Scattering on Transmission Spectra of Photonic Crystals of Anodized Alumina  

作　　者：胡星 凌志远 陈烁烁 何新华 

机构地区：[1]Department of Electronic Materials Eelence and Engineering, South China University of Technology, Guangzhou 610640

出　　处：《Chinese Physics Letters》2008年第9期3284-3287,共4页中国物理快报（英文版）

摘　　要：The light scattering is found to have a great influence on the transmission spectra of photonic crystal of anodic alumina. The incident light is diffracted by a regular array of branched channels or pores obeying the Bragg law. The intensity of transmission light decreases with the increasing etching time because of the increasing porosity or enlarging scatterers. The variation of intensity and widths of dips in transmission spectra of the porous alumina membrane versus the incidence angle shows the quite different characteristics from the other photonic crystal such as colloidal photonic crystal.The light scattering is found to have a great influence on the transmission spectra of photonic crystal of anodic alumina. The incident light is diffracted by a regular array of branched channels or pores obeying the Bragg law. The intensity of transmission light decreases with the increasing etching time because of the increasing porosity or enlarging scatterers. The variation of intensity and widths of dips in transmission spectra of the porous alumina membrane versus the incidence angle shows the quite different characteristics from the other photonic crystal such as colloidal photonic crystal.

关 键 词：the power-law exponents PRECIPITATION durative abrupt precipitation change 

分 类 号：O734[理学—晶体学]