Study on the Influence of the Incidence Direction on the Photonic Band Gap in Porous Si-based Dielectric Heterostructures

摘要：

The effect of the angle of incidence upon the omnidirectional reflectance of an electromagnetic wave that propagates throughout λ/4 multilayered dielectric porous-silicon-based heterostructures is theoretically studied. The transfer matrix formalism is used to perform simulations of light propagation for different angles of incidence. Several distinct arrays for the dielectric profiles are considered. They include periodic, quasiregular and hybrid quasiregularperiodic layer sequences. The same study is extended to deal with non-quarter-lambda stacking rugate and Gaussian structures. All structures have a total thickness of around 15.8m approximately, with refractive indices of 1.2 and 2.5 for the constituent layers. The results show the advantage of the porous-silicon hybrid structure to generate enhanced omnidirectional reflectance up to 60°.

作者: José Escorcia-García Miguel E.Mora-Ramos

作者单位: Centro de Investigación en Ingeniería y Ciencias Aplicadas Universidad Autónoma del Estado de Morelo Facultad de Ciencias,Universidad Autónoma del Estado de Morelos Ave.Universidad 1001,Cuernavaca 6220

会议类型: 国际会议

会议名称: Progress in Electromagnetics Research Symposium 2009(2009年电磁学研究新进展学术研讨会)(PIERS 2009)

会议地点: 北京

会议语种:英文

页码: 1063-1067

在线出版日期: 2009-03-23（万方平台首次上网日期，不代表论文的发表时间）