Abstract
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Highlights
Porous silicon is a widely used material for fabrication of porous structures, which could be used in different devices including gas sensors and biosensors [1]–[3]
We have developed the model for calculating the refractive index of the layers with different porosities using three-component effective media approximation [8], [9], taking into account the oxidation and refractive index dispersion of the silicon
It could be seen that the microcavity has a very high reflection in the range of 600-700 nm corresponding to the photonic bandgap and a gap in it marking the position of the eigenmode
Summary
Porous silicon (pSi) is a widely used material for fabrication of porous structures, which could be used in different devices including gas sensors and biosensors [1]–[3]. Ability to precisely control the porosity and the refractive index during the formation makes porous silicon suitable to obtain various multilayer porous structures including one-dimensional photonic crystals [4], [5]. Structures” in The 2nd International Symposium on Physics, Engineering and Technologies for Biomedicine, KnE Energy & Physics, pages 75–81. PhysBioSymp order to estimate the physical features of the structures with definite optical characteristics, appropriate mathematical models should be developed. In our study we have performed theoretical modeling of the optical properties of porous silicon onedimensional photonic crystals using different approaches
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