Cantor Dielectric Heterostructures Made of Nanostructured Multilayers of Porous Silicon
The wave propagation in the nanostructured porous silicon multilayers, where the geometrical length follows the Cantor code, is presented. The total thickness of the multilayered structure is maintained as 9000 nm. The heterostrucutres were fabricated by the porous silicon layers having the refractive indices of 1.9 and 1.2 corresponding to the low and high porosity respectively. The thickness of the high and low porosity layer varied from 1000 to 12nm for making the Cantor heterostructures up to 7th order. In the reflectance spectra of the Cantor structure of 6th order (63 layers), two major photonic band gaps (PBG) are observed in the visible region with a narrow resonance at 652 nm. In the Cantor structures, with order more than 6, instead of any PBG approximately equidistant fringes are observed.
V.Agarwal B.Alvarado-Tenorio J.Escorcia-Garcia L.M.Gaggero Sager
Centro de Investigación en Ingeniería y Ciencias Aplicadas,Universidad Autónoma del Estado de Morelo Facultad de Ciencias,Universidad Autónoma del Estado de Morelos Av.Universidad 1001,Col.Chamilpa,CP
国际会议
Progress in Electromagnetics Research Symposium 2008(2008年电磁学研究新进展学术研讨会)(PIERS 2008)
杭州
英文
1-4
2008-03-24（万方平台首次上网日期，不代表论文的发表时间）