Control of the transmission spectrum of a photonic crystal with lattice defects |
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| Authors: | S Ya Vetrov A V Shabanov E V Shustitski? |
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| Institution: | (1) Krasnoyarsk State Technical University, Krasnoyarsk, 660074, Russia;(2) Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russia |
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| Abstract: | The transmission spectrum of a one-dimensional photonic crystal with structural defects is investigated. An anisotropic layer of a nematic liquid crystal is considered as a defect. The possibility of effective external control of the transmission spectrum of the photonic crystal by changing either the orientational state of the defect liquid crystal layer (for example, using an electric field) or the angle of incidence of light is shown. It is established that the spectral properties of the photonic crystal change radically with a change in the optical characteristics of the defect layer in the vicinity of the temperature phase transition of the nematic liquid crystal to the isotropic state. |
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