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Formation of Infrared Regions of Transparency in One-Dimensional Silicon Photonic Crystals

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4 Author(s)
A. Baldycheva ; Department of Electronic and Electrical Engineering, Trinity College, Dublin, Ireland ; V. A. Tolmachev ; T. S. Perova ; K. Berwick

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.

Published in:

IEEE Photonics Technology Letters  (Volume:23 ,  Issue: 4 )