کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5358555 | 1503628 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Precise surface modification of polymethyl-methacrylate with near-infrared femtosecond laser
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Precise surface modification of polymethyl-methacrylate with near-infrared femtosecond laser Precise surface modification of polymethyl-methacrylate with near-infrared femtosecond laser](/preview/png/5358555.png)
چکیده انگلیسی
The fabrication of lines at the surface of polymethyl-methacrylate (PMMA) was studied. A femtosecond laser with pulse duration of 450Â fs and wavelength of 1027Â nm was used. The z-scan method was employed as a focusing procedure to control the sample position with respect to the beam waist through transmittance measurements. This allowed the production of continuous lines with a length of 2Â mm on the surface of the PMMA sample. The variation of the lines profiles and dimensions was studied for different values of the sample position with reference to the beam waist. Also effects on the lines fabricated at different values of incident energy and separation on the sample surface between consecutive impinging laser pulses were investigated. A range of positions where lines with similar features and sizes were produced was obtained. Submicrometric surface modifications were achieved as surface swelling in form of successive bumps. After inspecting the sample cross section, it was observed that depending on the relative position of the beam waist regarding the sample surface, inner modifications appear under the modified material surface.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 336, 1 May 2015, Pages 170-175
Journal: Applied Surface Science - Volume 336, 1 May 2015, Pages 170-175
نویسندگان
F. Caballero-Lucas, C. Florian, J.M. Fernández-Pradas, J.L. Morenza, P. Serra,