Record number :
1000470
Title of article :
Determination of surface anchoring energies of liquid crystals by optical diffraction
Author/Authors :
Chang-Jae Yu، نويسنده , , Jae-Hong Park، نويسنده , , Sin-Doo Lee، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Pages :
5
From page :
385
To page :
389
Abstract :
We propose a simple method of determining the surface anchoring energies of liquid crystals (LCs) in a binary grating structure. In the configuration of an alternating hybrid and homeotropic geometry, the director of the LC molecules is linearly deformed near domain boundaries according to the continuum theory. From the far-field optical diffraction formula for the phase profile in a form of a trapezoid, the extrapolation lengths, corresponding to the distorted lengths at a domain boundary, were obtained. The surface anchoring energies of the LCs are directly determined from the measured extrapolation lengths
Keywords :
Continuum theory , Diffraction grating , Anchoring energy , Liquid crystal devices
Journal title :
Applied Surface Science
Journal title :
Applied Surface Science
Serial Year :
2004
Link To Document :
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