کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9691653 1458197 2005 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Energy transport and material removal in wide bandgap materials by a femtosecond laser pulse
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Energy transport and material removal in wide bandgap materials by a femtosecond laser pulse
چکیده انگلیسی
A new model is proposed which greatly improves the accuracy in predicting the ablation depth and, for the first time, can predict the flat-bottom crater shape for wide bandgap materials ablated by a femtosecond laser pulse. The model calculates the transient distributions of free electron density and free electron temperature. The quantum treatment is employed to account for the specific heat and the relaxation time for free electrons. The temporal and spatial dependent optical properties of the dense plasma are considered. The predicted threshold fluence and ablation depth for fused silica are in agreement with published experimental data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 48, Issues 3–4, January–February 2005, Pages 487-499
نویسندگان
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