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Optical scattering in a nematic liquid crystal induced by acoustic surface waves

Optical scattering in a nematic liquid crystal induced by acoustic surface waves

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© The Institution of Electrical Engineers
Published

A standing acoustic-wave pattern at 2.6 MHz is displayed in a nematic liquid-crystal film on a piezoelectric substrate. The striations are visible because the liquid crystal is optically anisotropic, because of the acoustically induced turbulence. This result has implications for liquid-crystal display systems.

Inspec keywords: acousto-optical effects; liquid crystals

Other keywords: optical scattering; acoustic surface waves; nematic liquid crystal film; 2.6 MHz; piezoelectric substrate

Subjects: Liquid crystals; Acoustic wave devices; Piezoelectric and ferroelectric devices; Acousto-optical devices

References

    1. 1)
      • H. Mailer , K.L. Likins , T.R. Taylor , J.L. Fergason . Effect of ultrasound on a nematic liquid crystal. Appl. Phys. Lett. , 105 - 107
    2. 2)
      • S. Chandrasekhar . (1961) , Hydrodynamic and hydromagnetic stability.
    3. 3)
      • G.H. Heilmeier , L.A. Zanoni , L.A. Barton . Further studies of the dynamic scattering mode in nematic liquid crystals. IEEE Trans. , 22 - 26
    4. 4)
      • L.W. Kessler , S.P. Sawyer . Ultrasonic stimulation of optical scattering in nematic liquid crystals. Appl. Phys. Lett. , 440 - 441
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