کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1542258 996714 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Two-photon induced anisotropy in PMMA film doped with Disperse Red 13
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Two-photon induced anisotropy in PMMA film doped with Disperse Red 13
چکیده انگلیسی

In this paper we present optical anisotropy induced by 150-fs laser pulses operating at 775 nm in poly(methyl methacrylate) (PMMA) films doped with Disperse Red 13 (DR13). Two-photon absorption of DR13 induces reversible birefringence in the sample, a feature associated with the molecular orientation caused by isomerization of the azochromophores. No irreversible anisotropy, associated with photobleaching of the chromophore was observed. The slope of 2 obtained for the induced birefringence as a function of the excitation irradiance corroborates the two-photon nature of the process.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 273, Issue 2, 15 May 2007, Pages 435–440
نویسندگان
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