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Full-Text Articles in Electrical and Electronics
Influence Of Fluctuations Of The Geometrical Parameters On The Photonic Band Gaps In One-Dimensional Photonic Crystals, Vladimir A. Tolmachev, Anna .. Baldycheva, Kevin Berwick, Tatiana Perova
Influence Of Fluctuations Of The Geometrical Parameters On The Photonic Band Gaps In One-Dimensional Photonic Crystals, Vladimir A. Tolmachev, Anna .. Baldycheva, Kevin Berwick, Tatiana Perova
Articles
The influence of random fluctuations in the layer thicknesses in high contrast, one-dimensional Photonic Crystals (PCs) on the transmission spectra and Photonic Band Gaps (PBGs) is investigated. The change in the PBGs depends on the magnitude of the fluctuations and increases with an increase in the order of the PBG. Introducing thickness non-uniformity into the PC of up to 0.004 times the value of lattice constant for different types of fluctuation distributions has a negligible effect on either the position or the shape of the 1st and nearest PBGs. The approach suggested here allows the determination of the tolerances required …
Formation Of Infrared Windows Of Transparency In One-Dimensional Silicon Photonic Crystals, Anna Baldycheva, Vladmir A; Tolmachev, Tatiana S. Perova, Kevin Berwick
Formation Of Infrared Windows Of Transparency In One-Dimensional Silicon Photonic Crystals, Anna Baldycheva, Vladmir A; Tolmachev, Tatiana S. Perova, Kevin Berwick
Articles
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 …