کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7932103 | 1512611 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Photomechanical response of disperse red 1 azobenzene dye-doped PMMA polymer fiber
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Photomechanical response of disperse red 1 azobenzene dye-doped PMMA polymer fiber Photomechanical response of disperse red 1 azobenzene dye-doped PMMA polymer fiber](/preview/png/7932103.png)
چکیده انگلیسی
Disperse red 1 azobenzene (DR1) doped poly(methyl methacrylate) (PMMA) optical fiber has been shown to have a fast photomechanical response upon 633Â nm laser irradiation originating in photo-isomerization of the dopants between the cis and trans forms. In this work, laser light of 355Â nm wavelength is used to investigate the trans to cis isomerization process, which should result in length contraction. A three-point-contact optically actuated beam-controlling mount is made of dye doped polymer fiber segments and metal-coated microscope coverslips to measure the photomechanical response. The length change of the fiber is determined from a quadrant photodetector reading upon beam deflection. The fiber is observed to elongate upon UV irradiation. We find that for DR1 dye in PMMA polymer, the dominant mechanism of the photomechanical effect is photo-thermally stimulated isomerization rather than direct photoisomerization.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 312, 1 February 2014, Pages 210-215
Journal: Optics Communications - Volume 312, 1 February 2014, Pages 210-215
نویسندگان
Xianjun Ye, Mark G. Kuzyk,