Title :
Formation of Infrared Regions of Transparency in One-Dimensional Silicon Photonic Crystals
Author :
Baldycheva, A. ; Tolmachev, V.A. ; Perova, T.S. ; Berwick, K.
Author_Institution :
Dept. of Electron. & Electr. Eng., Trinity Coll., Dublin, Ireland
Abstract :
The optical properties of three-component one-dimensional photonic crystal (1-D PC) structures were investigated by modeling them as two-component PCs with an additional regular t-layer, using the gap map approach and the transfer matrix method. Numerical results demonstrate that the introduction of the t-layer affects the properties of the high-order photonic band gaps, replacing them with transmission bands and creating regions of transparency over certain wavelength ranges. For the first time, a map of the transmission bands for a three-component 1-D PC was generated. This map constitutes a unique design tool for infrared optical filters for silicon-based photonic integrated circuits.
Keywords :
integrated optics; optical design techniques; optical filters; photonic band gap; photonic crystals; silicon; 1D silicon photonic crystals; gap map approach; infrared optical filters; infrared regions; photonic band gaps; photonic integrated circuits; regular t-layer; transfer matrix method; transmission bands; Optical reflection; optical spectroscopy; photonic band gap materials; photonic crystals; silicon;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2096412