Abstract
The spectral dependence of the optical transmission through close-packed monolayers of silica (a-SiO2) microspheres covered with different amounts of amorphous silicon (a-Si) is studied. The strong dips in the transmission can be understood by the coupling of the incident electromagnetic field into the modes of the combined photonic slab structure consisting of the close-packed lattice of a-SiO2 microspheres and a-Si. The dependence of the transmission minima positions on the a-Si thickness and the angle of incidence agree quite well with model calculations.
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www.ioffe.ru/SVA/NSM/nk/Silicon/Gif/siam1.gif www.ioffe.ru/SVA/NSM/nk/Silicon/Gif/siam2.gif
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78.66.-w; 81.16.Dn; 82.70.Dd; 42.70.Qs
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Landström, L., Arnold, N., Brodoceanu, D. et al. Photonic properties of silicon-coated monolayers of colloidal silica microspheres. Appl. Phys. A 83, 271–275 (2006). https://doi.org/10.1007/s00339-006-3490-7
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DOI: https://doi.org/10.1007/s00339-006-3490-7