Photonic Band-Gaps in Porous Silicon Based Mirrors with a Ellipse Profile Refractive Index

Shuan Ming Li; Fu Ru Zhong; Zhen Hong Jia; Min Tian

doi:10.4028/www.scientific.net/AMR.236-238.1811

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Photonic Band-Gaps in Porous Silicon Based Mirrors with a Ellipse Profile Refractive Index
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Photonic Band-Gaps in Porous Silicon Based Mirrors with a Ellipse Profile Refractive Index

Abstract:

We investigate the use of ellipse refractive index structure to enlarge photonic band-gap (PBG). The PBG structure was prepared on porous silicon with 10 unit cell. Each unit cell is consisting of 21 layers with the refractive index varying according to the envelope of the ellipse function. The width of this photonic band-gap is high to 451nm.