Spectral features of polarized light absorption and anisotropy of a local field in the D-ho discotic

Тип публикации: статья из журнала

Год издания: 2000

Идентификатор DOI: 10.1134/1.626896

Аннотация: The polarized IR absorption spectra of monodomain planar-oriented films of a discotic liquid crystal D-ho are obtained for the first time. The spectral effects induced by the resonance dipole-dipole interaction of molecules, which have been predicted earlier, were observed. It was found that molecular excitations in isotropic and liquid-crystal phases are mixed due to local-filed effects and this mixing affects the relative intensity and dichroism of the absorption bands. New methods were suggested for measuring the local-field parameters in the D-ho phase from intensities and positions of the polarized absorption bands taking into account the mixing of molecular excitations. The two-dimensional crystal lattice of molecular columns was shown to reduce the local-field anisotropy of this phase. (C) 2000 MAIK "Nauka/Interperiodica".

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Выпуск журнала: Vol. 88, Is. 6

Номера страниц: 891-897

ISSN журнала: 0030400X

Место издания: WASHINGTON



  • Aver'yanov E.M. (Kirenskii Physics Institute,Siberian Division,Russian Academy of Sciences)
  • Gunyakov V.A. (Kirenskii Physics Institute,Siberian Division,Russian Academy of Sciences)
  • Korets A.Ya. (Krasnoyarsk Stt. Tech. University)
  • Akopova O.B. (Ivanovo State University)

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