Publication: Polymer stabilized blue phase beam steering
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2019-09-13
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Abstract
Nematic liquid crystal (LC) based beam steering have been reported for wide applications. However, for conventional nematic LC beam steering the thickness is of several microns in order to have a wider deflection angle. The response time is relatively slow and the diffraction efficiency is low. The aim of this work has been focused on designing and theoretically analyzing a novel beam steering based on polymer stabilized blue phase liquid crystal (PSBPLC). This special mesophase of the chiral doped nematic LC has several advantageous characteristics. For example, a microsecond response time (approximately ten times faster than NLC) due to the double-twist cylinder diameter and short coherence length. A simulation program estimates the electrical field inside the structure solving the Gauss' law by FEM. An isotropic initial state is considered. The induced birefringence, and the ordinary and extraordinary refractive indices, are calculated in each mesh point. Orientation of the electrical field vector determines the optical axis orientation. The induced optical anisotropy of the PS-BPLC is considered. With this information and adopting the extended Jones matrix, the related electro-optical properties are estimated.
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[Poster of]: 16th Topical Meeting on the Optics of Liquid Crystals. Sopot, 13th-18th of September, 2015, Poland.
Keywords
Nematic Liquid Crystals, Polymer Stabilized Blue Phase Liquid Crystal (PS-BPLC), Simulation
Bibliographic citation
16th Topical Meeting on the Optics of Liquid Crystals. Sopot, 13th-18th of September, 2015, Poland.