کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1000489 937001 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Features of recording holograms in polymethylmethacrylate doped by boron difluoride anthraceneacetonates
ترجمه فارسی عنوان
ویژگی های ضبط هولوگرام در پلی اتیل متیل اکریلات، دوپ شده با anthraceneacetonates دیفلورید بورون
کلمات کلیدی
متوسط هولوگرافیک فاز پلیمری ؛ افزایش نفوذ
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
چکیده انگلیسی

Holographic gratings formation in polymethylmethacrylate doped with boron difluoride anthraceneacetonates was studied. It was shown, that the time dependence of refractive index (RI) modulation amplitude for recorded holographic gratings demonstrates M-shaped character, with the first (up to 0.5 × 10−4 RI units) and the second (up to 0.2 × 10−4 RI units) maxima of this dependence being caused by photodimerizability and postexposure diffusion of photoactive additive molecules. It was found that the material's resolution determined by competition of diffusion and photochemical processes for recorded gratings is about 1000 lines/mm. However, due to diffusion this value raises with time after the recording process end reaching 2500 lines/mm. It was shown that the optimal exposure time is inversely proportional to the grating spatial frequency and can be reduced by more than an order of magnitude by material heating from 25 °C to 75 °C.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Pacific Science Review - Volume 16, Issue 3, December 2014, Pages 178–182
نویسندگان
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