کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9778027 | 1510568 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Laserlike emission from silica inverse opals infiltrated with Rhodamine 6G
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Laserlike emission from silica inverse opals infiltrated with Rhodamine 6G Laserlike emission from silica inverse opals infiltrated with Rhodamine 6G](/preview/png/9778027.png)
چکیده انگلیسی
Monodisperse latex spheres were obtained by a surfactant free styrene polymerization method and used to obtain colloidal crystals by controlled centrifugation settling. Silica inverse opals were then prepared by using the colloidal crystals as templates and TEOS/ethanol solution. The inverse opals were infiltrated with Rhodamine 6G and laserlike emission was observed at 590Â nm under 532Â nm pump wavelength. The data show line narrowing of the dye fluorescence and a laser threshold of â¼0.1Â mJ/pulse. Local-field effects and light scattering due to structural defects are the main mechanisms contributing to generation of the laser-action observed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 351, Issues 21â23, 15 July 2005, Pages 1846-1849
Journal: Journal of Non-Crystalline Solids - Volume 351, Issues 21â23, 15 July 2005, Pages 1846-1849
نویسندگان
Márcio A.R.C. Alencar, Glauco S. Maciel, Cid B. de Araújo, Roberto Bertholdo, Younes Messaddeq, Sidney J.L. Ribeiro,