Wave Optics in Discrete Excitable Media

作     者：GU Guo-Feng WEI Hai-Ming TANG Guo-Ning 顾国锋;韦海明;唐国宁

作者机构：College of Physics Science and TechnologyGuangxi Normal UniversityGuilin 541004 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2012年第29卷第5期

页      面：107-110页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 11165004 and 10765002 

主　　题：parameters. refraction incident 

摘      要：Refraction and reflection of planar waves in a discrete excitable medium is numerically investigated by using the Greenberg-Hasting *** is fonnd that the medium is anisotropic because the speed of the planar wave depends on the excitability of the medium and the direction of wave *** reflection,diffraction,refraction,double refraction and delayed refraction are observed by using the correct choice of model *** the incident angle is larger than the critical angle,the reflection,which is a back refraction,takes *** reflection angle changes with the incident *** refraction in certain situations obeys Shell s ***,our results demonstrate that the incident,refracted and reflected waves can have different *** reflected and refracted waves can disappear.