کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1535033 1512615 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimization of light diffraction efficiency and its enhancement from a doped-PMMA volume holographic material
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Optimization of light diffraction efficiency and its enhancement from a doped-PMMA volume holographic material
چکیده انگلیسی
In this paper, we study the diffraction efficiency from the volume gratings in holographic materials, PQ/PMMA, and their efficiency-enhancement in an optically dark environment (dark enhancement). We show that the diffraction efficiency is increased in real-time by light-exposure and then by a slow diffusion process in the dark after light-exposure. We observe strong correlations between the efficiency, the light-exposure energy and the dark-enhancement. Furthermore, we establish an optimum condition for light-exposure and dark-enhancement. Accordingly, we simultaneously achieve the best diffraction-efficiency of 82% for a 2 mm thick PQ/PMMA and an efficiency-enhancement of 3.1 times after exposure, approaching the theoretical limit of 4 times.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 308, 1 November 2013, Pages 121-124
نویسندگان
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