Abstract
The transmission and luminescence spectra of a cholesteric photonic crystal doped with an organic dye are measured. The density of photon states is calculated using the material parameters obtained from the comparison of the experimental and theoretical spectra. The shape of the luminescence spectra is modified with respect to the density of photon states owing to the difference in the structure of the normal modes of the photonic crystal near the short-wavelength and long-wavelength edges of the photonic quasi-band gap upon the “pushing” of the photon states from the gap and to the nonvanishing orientation ordering of the luminescent molecules. The luminescence spectrum calculated taking into account the chiral structure of the photonic crystal agrees with the experimental spectrum.
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Original Russian Text © P.V. Dolganov, 2017, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2017, Vol. 105, No. 10, pp. 616–620.
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Dolganov, P.V. Luminescence spectra of a cholesteric photonic crystal. Jetp Lett. 105, 657–660 (2017). https://doi.org/10.1134/S002136401710006X
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DOI: https://doi.org/10.1134/S002136401710006X