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Electrical and electronic engineering
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.
Baldycheva, A., Tolmachev, V.A., Perova, T.S., Berwick, K.:Formation of Infrared Regions of Transparency in One-Dimensional Silicon Photonic Crystals. Photonics Technology Letters, IEEE, vol.23, issue 4, 2011, pp.200-202. doi:10.1109/LPT.2010.2096412