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Optical response of nematic droplets in a polymer matrix to a strong pulsed magnetic field

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Abstract

A change in the optical transmission of an ordered single-layer ensemble of nematic liquid crystal (NLC) droplets of 4-n-pentyl-4′-cyanobiphenyl (5CB) in a poly(vinyl butyral) (PVB) matrix in response to a magnetic field pulse with an amplitude of H = 9 × 106 A/m was observed. Since the leading pulse front duration (τonH = 5 ms) significantly exceeded the theoretically calculated NLC response time (τonLC = 0.8 ms), the dynamics of transformations of the NLC director orientation and the optical response were analogous to those in the case of a stationary or slowly varying magnetic field. In contrast, the field decay time (τoffH = 25 ms) was much shorter than the NLC relaxation time (τoffLC = 300 ms) and, hence, the trailing front of the optical response was not influenced by the oscillatory character of the magnetic field decay during capacitor discharge via an RL chain.

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References

  1. G. M. Zharkova and A. S. Sonin, Liquid-Crystalline Composites (Nauka, Novosibirsk, 1994) [in Russian].

    Google Scholar 

  2. G. Barbero and L. R. Evangelista, Adsorption Phenomena and Anchoring Energy in Nematic Liquid Crystals (Taylor and Francis, Boca Raton, 2006).

    Google Scholar 

  3. O. O. Prishchepa, V. F. Shabanov, V. Ya. Zyryanov, A. M. Parshin, and V. G. Nazarov, Pis’ma Zh. Éksp. Teor. Fiz. 84, 723 (2006) [JETP Lett. 84, 602 (2005)].

    Google Scholar 

  4. A. V. Barannik, O. O. Prishchepa, A. M. Parshin, A. V. Shabanov, V. G. Nazarov, and V. Y. Zyryanov, Proc. SPIE 6637, 5 (2007).

    Google Scholar 

  5. A. S. Lagutin and V. I. Ozhogin, Strong Pulsed Magnetic Fields in Physical Experiment (Énergoatomizdat, Moscow, 1988) [in Russian].

    Google Scholar 

  6. D. Montgomery, Solenoid Magnet Design (Plenum, New York, 1969; Mir, Moscow, 1971).

    Google Scholar 

  7. B-G. Wu, J. H. Erdmann, and J. W. Foane, Liq. Cryst. 5, 1453 (1989).

    Article  Google Scholar 

  8. J. D. Bunning, T. I. Faber, and P. L. Sherrell, J. Phys. 42, 1175 (1981).

    Google Scholar 

  9. M. J. Bradshaw, E. P. Raynes, J. D. Bunning, and T. I. Faber, J. Phys. 46, 1513 (1985).

    Google Scholar 

  10. V. V. Belyaev, Viscosity of Nematic Liquid Crystals (Fizmatlit, Moscow, 2002) [in Russian].

    Google Scholar 

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Authors and Affiliations

  1. Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russia

    A. M. Parshin & A. V. Barannik

Authors
  1. A. M. Parshin
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  2. A. V. Barannik
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Correspondence to A. M. Parshin.

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Original Russian Text © A.M. Parshin, A.V. Barannik, 2009, published in Pis’ma v Zhurnal Tekhnicheskoĭ Fiziki, 2009, Vol. 35, No. 24, pp. 88–94.

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Parshin, A.M., Barannik, A.V. Optical response of nematic droplets in a polymer matrix to a strong pulsed magnetic field. Tech. Phys. Lett. 35, 1166–1168 (2009). https://doi.org/10.1134/S106378500912027X

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  • DOI: https://doi.org/10.1134/S106378500912027X

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