Results 211 to 220 of about 16,550 (252)

Novel Ferroelectricity in Fluorinated Ferroelectric Liquid Crystal

Japanese Journal of Applied Physics, 1987
Ferroelectric liquid crystals with spontaneous polarization exceeding 10-7 C/cm2 have been prepared by introducing a fluorinated carbon. The liquid crystals show anomalous dielectric behaviour due to the wall and field effects.
Katsumi Yoshino, Masanori Ozaki, Hiroki Taniguchi, Masanori Ito, Kazuo Satoh, Noritsugu Yamasaki, Tomoya Kitazume   +6 more
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Ferroelectric Liquid Crystals

1998
In the preceding chapters we have dealt with the phenomena associated with the origination of a spontaneous polarization in crystalline media. The basic mechanisms leading to ferroelectricity involved spontaneous displacements of charged particles in unit cells or redistributions of the probabilities of their localization at certain positions.
Boris A. Strukov, Arkadi P. Levanyuk
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Properties of Ferroelectric Liquid Crystals

SPIE Proceedings, 1986
Certain smectic liquid-crystalline mesophases of chiral materials have been shown to exhibit both ferroelectric and pyroelectric properties. Consequently, these phenomena have recently been evaluated for their device potential. For example, these modifications have been proposed for use in displays, heat sensors, linear arrays, and spatial light ...
J. W. Goodby, J. S. Patel
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Liquid crystals for magneticians ferroelectric liquid crystals

IEEE Transactions on Magnetics, 1976
The rapid development of research on the physics of liquid crystals in recent years is largely due to the application of knowledge, ideas, and experimental techniques from various aspects of solid state physics to these unusual materials. For those studying phase changes, response to external fields, and defect structures in liquid crystals, analogies ...
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Second-harmonic generation in ferroelectric liquid crystals

Optics Letters, 1989
Some organic functional groups have been shown to have very large optical nonlinear coefficients. By incorporating such molecules into ferroelectric liquid crystal molecules, the difficult macroscopic alignment of such molecules becomes feasible and the resulting crystals yield large bulk optical nonlinearities which include SHG.
J Y, Liu, M G, Robinson, K M, Johnson, D, Doroski   +3 more
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Chirality Transfer in Ferroelectric Liquid Crystals

Accounts of Chemical Research, 2001
This Account describes how concepts used in the fields of host-guest chemistry and chiral molecular recognition may be used to explain the unique chiral induction behavior of molecules with atropisomeric biphenyl cores when doped into a two-dimensionally ordered smectic liquid crystal phase formed by rod-shaped molecules with a phenylpyrimidine core ...
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Optical Activity and Ferroelectricity in Liquid Crystals

Science, 1986
Some liquid-crystalline phases of optically active materials are themselves optically active and have dissymmetric structures. The cholesteric phase and smectics C*, I*, and F* have a helical order of their molecules. Plane-polarized light is rotated by the helix, and when the pitch of the helix is comparable to the wavelength of visible light, these ...
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Solitons in ferroelectric liquid crystal

physica status solidi (b), 1983
AbstractThe stable phases of liquid crystals whose constituents contain chiral molecules are studied. Starting from the Landau free energy for the order parameter the soliton‐lattice solution of the incommensurate phase is analysed in detail. The solutions of the normal and commensurate phases are obtained by the transfer matrix method.
A. S. T. Pires, F. C. Sá Barreto
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Ferroelectric liquid crystal video display

Conference Record of the 1988 International Display Research Conference, 1989
Although the surface stabilized ferroelectric liquid-crystal (SSFLC) effect is bistable, the possibility of creating a wide range of grayscales based on the multidomain structure is demonstrated. An active-matrix-addressed SSFLC black-and-white television display was realized, proving the grayscale capability. The active-matrix-addressed liquid-crystal
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Electro-Optics of Ferroelectric Liquid Crystals

SPIE Proceedings, 1986
The symmetry arguments which predict the existence of ferroelectricity in chiral smectic liquid crystals are presented. Structure of the ferroelectric liquid crystals in the thin and the thick cell configurations are reviewed. A brief description of the technique to align these liquid crystals is also given.
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