Search for dissertations about: "biaxiality"

Found 4 swedish dissertations containing the word biaxiality.

  2. 1. Optical properties and helicity in liquid crystals

    Author : Anders Dahlgren; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; de Vries formula; smectic A*; smectic helix; Poincaré sphere; homeotropic alignment; chiral; light switch; birefringence; electroclinic; diffraction method; indicatrix; phase grating; helial pitch; snisotropy; liquid crystals; smectic C*; handedness; book-shelf geometry; Cano method; ferroelectric; biaxiality; dielectric tensor;

    Abstract : .... READ MORE

  4. 2. Rotational viscosity and dielectric biaxiality in chiral smectic C liquid crystals

    Author : Marius Buivydas; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; rotational viscosity; chirality; chiral smectic; liquid crystals; dielectric anisotropy; ferromagnetism; dielectric biaxality; ferroelectricity;

    Abstract : .... READ MORE

  5. 3. Structures and Properties of Ferroelectric Liquid Crystal Displays

    Author : Marek Matuszczyk; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; smectic; displays; dielectric anisotropy and biaxiality; surface-stabilized structure; dielectric; paraelectric; liquid crystal alignment; electroclinic effect; grey scale; polarization; multiplexing; liquid crystal LC ; orthogonal and tilted phases; chirality; aligning layer; ferroelectric; polyimide; rubbing; light valves and modulators; SSFLC;

    Abstract : Liquid crystals have unique physical properties as they combine the features of solids and liquids. In thermotropic liquid crystals the degree of order varies with temperature resulting in an appearance of intermediate phases. READ MORE

  6. 4. Multiplexing Methods for Surface-Stabilized Ferroelectric Liquid Crystal Devices

    Author : Tomasz Matuszczyk; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The present thesis deals with the electronic addressing of Surface-Stabilized Ferroelectric Liquid Crystal (SSFLC) displays. Basically, this means to investigate how a certain information can be produced serially in the shape of long square pulse waveforms and transferred to a high resolution SSFLC matrix, via the specific linear electro-optic response exhibited by this material, to form a desired image on the screen at any time. READ MORE