کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5363723 1388305 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Crystalline orientation effects on conical structure formation in femtosecond laser irradiation of silicon and germanium
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Crystalline orientation effects on conical structure formation in femtosecond laser irradiation of silicon and germanium
چکیده انگلیسی

Irradiation of Si(1 0 0), Si(1 1 1), Si(1 1 0), Ge(1 0 0), and Ge(1 1 1) is compared for 150 fs, 800 nm wavelength pulses in a rough vacuum atmosphere. The surface crystalline orientation of the material is found to affect the final morphology, with (1 1 1)- and (1 1 0)-surface orientations exhibiting a much higher tendency for conical structure formation under multiple-pulse irradiation. Using cross-sectional transmission electron microscopy, the structures on Si(1 1 1) are found to have primarily crystalline cores with the same crystalline orientation as the substrate. The results show that the crystalline orientation of the target should be considered in laser machining applications.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 256, Issue 6, 1 January 2010, Pages 1749-1755
نویسندگان
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