کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1494338 992905 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanisms of the refractive index change in DO11/PMMA due to photodegradation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Mechanisms of the refractive index change in DO11/PMMA due to photodegradation
چکیده انگلیسی
Using a white light interferometric microscope (WLIM) we measure the photodamage induced change in the complex index of refraction of disperse orange 11 (DO11) dye-doped (poly)methyl-methacrylate. We find that the change in the imaginary part of the refractive index is consistent with previous measurements of photodamage-induced absorbance change. Additionally, we find that the irreversible change in the real refractive index can be separated into a component due to damage to the dye molecules and a component due to irreversible damage to the polymer. From the features of the polymers contribution to the irreversible change in the real refractive index we conclude that photo-thermal induced chain scission and cross linking are the underlying mechanisms of polymer damage.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 36, Issue 7, May 2014, Pages 1227-1231
نویسندگان
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