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Absorption and emission of finite layer of chiral photonic crystal

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Journal of Contemporary Physics (Armenian Academy of Sciences) Aims and scope

Abstract

The peculiarities of absorption and emission of the finite layer of cholesteric liquid crystal are investigated. The influence of parameters characterizing the absorption and gain, as well as the layer thickness and the local dielectric anisotropy on the absorption and emission is studied. In particular, it is shown, that the increase of the parameter x′ characterizing the gain results in the increase of emission. However, there are the discrete points in the (λ, x′) plane, where the emission is maximal (λ is the wavelength of incident light). These points determine the critical values of gain at which the low-threshold laser generation takes place. The obtained results can be used to develop the strongly absorbing systems.

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Authors and Affiliations

  1. Yerevan State University, Yerevan, Armenia

    A. H. Gevorgyan

  2. Institute of Applied Problems in Physics, Yerevan, Armenia

    A. H. Gevorgyan

Authors
  1. A. H. Gevorgyan
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Correspondence to A. H. Gevorgyan.

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Original Russian Text © A.H. Gevorgyan, 2015, published in Izvestiya NAN Armenii, Fizika, 2015, Vol. 50, No. 1, pp. 38–51.

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Gevorgyan, A.H. Absorption and emission of finite layer of chiral photonic crystal. J. Contemp. Phys. 50, 28–38 (2015). https://doi.org/10.3103/S1068337215010053

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  • DOI: https://doi.org/10.3103/S1068337215010053

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