Spectral properties of the three-layered wedge-cell system of two identical cholesteric layers with an isotropic defect (dye-doped polymer layer) between them were investigated experimentally and theoretically. It was shown that multiple defect modes can be observed in this kind of system.s photonic bandgap which widen the application range of mentioned above system such as low threshold lasing, multi-position trigger, multiwavelength filters, light shutters, etc. Supporting simulation was also provided showing an agreement between experimental results and theoretical calculations. The problem was solved by Ambartsumian.s layer addition modified method. Keywords: cholesteric liquid crystals, chirality, photonic bandgap, defect modes, tuning, laser dye, polymer layer.

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Дата начала обработки статистических данных - 27 января 2016 г.