کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1537197 996581 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermally enhanced optical nonlinearity in nematic liquid crystal close to phase transition temperature
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Thermally enhanced optical nonlinearity in nematic liquid crystal close to phase transition temperature
چکیده انگلیسی

This study investigates the beam profile and the liquid crystal (LC) arrangement affected by an optical field on LC thin films at a temperature close to nematic–isotropic phase transition temperature (TNI). A combined microscopic and conoscopic technique was used in experiments as a convenient way to analyze the optical nonlinearity that is associated with the molecular configuration of nematic liquid crystal (NLC). An optical field combined with thermal enhancement enhances molecular reorientation and causes additional molecular excitation along the axis of propagation of the beam. The reorientational nonlinearity yields an undulating structure with multi-foci; the length between each pair of foci increases with time, as described.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 283, Issue 18, 15 September 2010, Pages 3516–3519
نویسندگان
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