27 August 2008 Matrix model for a twisted medium: liquid crystal cell
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In this work we derive the birefringence matrix of a twisted nematic liquid crystal using Jones matrix formalism. It is assumed that due to the shape of the molecules and negligible absorption each plane slice of a liquid crystal cell exhibits a uniform intrinsic birefringence (linear or elliptical). Under this scope, it is shown that the anisotropy of the twisted nematic liquid crystal is described by an inhomogeneous birefringence matrix. A polarimetric procedure to verify this result is also proposed.
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D. Tentori, D. Tentori, C. Ayala-Díaz, C. Ayala-Díaz, E. Ledezma-Sillas, E. Ledezma-Sillas, } "Matrix model for a twisted medium: liquid crystal cell", Proc. SPIE 7050, Liquid Crystals XII, 705016 (27 August 2008); doi: 10.1117/12.795282; https://doi.org/10.1117/12.795282

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