8 February 2018 Numerical calculation of Kossel diagrams of cholesteric blue phases
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Abstract
Kossel diagrams visualize the directions of strong Bragg reflections from a specimen with periodic ordering. They have played a pivotal role in the determination of the symmetry of cholesteric blue phases, and in the investigation of their structural changes under an electric field. In this work, we present direct numerical calculations of the Kossel diagrams of cholesteric blue phases by solving the Maxwell equations for the transmission and reflection of light incident upon a finite-thickness blue phase cell. Calculated Kossel diagrams are in good agreement with what is expected as a result of Bragg reflections, although some differences are present.
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Jun-ichi Fukuda, Yasushi Okumura, Hirotsugu Kikuchi, "Numerical calculation of Kossel diagrams of cholesteric blue phases", Proc. SPIE 10555, Emerging Liquid Crystal Technologies XIII, 105550A (8 February 2018); doi: 10.1117/12.2286290; https://doi.org/10.1117/12.2286290
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