Cholesteric liquid crystals are known to possess bandgap and exhibit strong reflection for
one of two circular polarizations of light. We suggest a periodically twisted nematic liquid …

We discuss a planar nematic liquid-crystal structure with the director periodically twisted in
the light propagation direction (periodically twisted nematic) as a medium, which exhibits …

In this letter, we propose a simple configuration that is capable of rotating a linear
polarization state of light by a certain angle for a wide range of wavelengths. The device …

A reflective type of a liquid crystal (LC) display is proposed in a twisted hybrid aligned
configuration with a reflective electrode and a single polarizer. A chiral dopant was …

In this letter we demonstrate an inverse twisted nematic device in which the input polarized
light is unaffected in the field-off state and produces a polarization rotation in the field-on …

A twisted nematic liquid crystal is shown by theory and experiment to rotate incident plane-
polarised light by?/2 only at specified wavelengths. At other wavelengths, elliptically …

Liquid-crystal twisted nematic structures can be made with twist angles other than the
conventional 90 degrees. It is shown that theoretically the transmission of such a structure …

An orientational order parameter for cholesteric liquid crystals is defined in analogy to
nematic mesophases. The influence of this parameter on the selective reflexion and the …

Voltage-Dependent Optical Activity of a Twisted Nematic Liquid Crystal - NASA/ADS Now on
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An analytic expression for the optical field propagating normally in a general twisted nematic
liquid‐crystal structure is obtained for the first time. Based upon this, analytic expressions …