کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9786205 1512668 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Polarization effects in reconfigurable liquid crystal phase holograms
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Polarization effects in reconfigurable liquid crystal phase holograms
چکیده انگلیسی
An improved configuration for achieving true polarization insensitive reconfigurable phase holograms for optical switches using homogeneously aligned nematic liquid crystal devices is presented. Previous experimental results have been analyzed and explained using numerical modeling of the nematic liquid crystal orientation and associated optical modulation. Twisting of the liquid crystal optical axis from the optimal 45° orientation from the quarter waveplate is shown to degrade the polarization insensitive performance. The alternative direction of surface alignment perpendicular to the long pixel edge eliminates the twist of the director during switching. True polarization insensitivity is predicted with our model for this mode of operation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 244, Issues 1–6, 3 January 2005, Pages 105-110
نویسندگان
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