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Orientational optical nonlinearity of nematic liquid crystals induced by high-molecular-mass azo-containing compounds

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Abstract

Processes of light-induced reorientation of nematic liquid-crystalline molecules induced by the addition of low concentrations (0.1–2.0 wt %) of comb-shaped polymers and carbosilane dendrimers containing azobenzene fragments are studied. When the molecular structure of the above compounds becomes more complicated, the induced orientational nonlinearity increases. The introduction of 2G and 3G dendrimers into a nematic has for the first time made it possible to visualize and study a purely optical first-order Freedericksz transition in the field of a linearly polarized wave.

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Authors and Affiliations

  1. Lebedev Physical Institute, Russian Academy of Sciences, Leninskii pr. 53, Moscow, 119991, Russia

    I. A. Budagovsky, A. S. Zolot’ko, V. N. Ochkin, M. P. Smayev & S. A. Shvetsov

  2. Faculty of Chemistry, Moscow State University, Moscow, 119991, Russia

    A. Yu. Bobrovsky, N. I. Boiko & V. P. Shibaev

  3. Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninskii pr. 59, Moscow, 119333, Russia

    M. I. Barnik

Authors
  1. I. A. Budagovsky
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  2. A. S. Zolot’ko
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  3. V. N. Ochkin
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  4. M. P. Smayev
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  5. S. A. Shvetsov
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  6. A. Yu. Bobrovsky
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  7. N. I. Boiko
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  8. V. P. Shibaev
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  9. M. I. Barnik
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Corresponding author

Correspondence to A. S. Zolot’ko.

Additional information

Original Russian Text © I.A. Budagovsky, A.S. Zolot’ko, V.N. Ochkin, M.P. Smayev, S.A. Shvetsov, A.Yu. Bobrovsky, N.I. Boiko, V.P. Shibaev, M.I. Barnik, 2011, published in Vysokomolekulyarnye Soedineniya, Ser. A, 2011, Vol. 53, No. 8, pp. 1337–1348.

This work was supported by the Russian Foundation for Basic Research (project nos. 11-02-01315 and 11-03-01046) and the federal target program Scientific and Educational Specialists of Innovation Russia (State Contract no. 02.740.11.0447).

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Budagovsky, I.A., Zolot’ko, A.S., Ochkin, V.N. et al. Orientational optical nonlinearity of nematic liquid crystals induced by high-molecular-mass azo-containing compounds. Polym. Sci. Ser. A 53, 655–665 (2011). https://doi.org/10.1134/S0965545X11080025

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  • DOI: https://doi.org/10.1134/S0965545X11080025

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