Cone evolution on VUV laser ablated polymers |
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| Authors: | R. Zakaria P. E. Dyer |
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| Affiliation: | (1) Laser Laboratory, Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran |
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| Abstract: | We report on conical microstructures formed on polycarbonate and polyallyl di-glycol carbonate (CR39) ablated using 157-nm F2 laser radiation. These are distinguished by having smooth, straight walls and, for CR39, sharp tips, together with interference and diffraction fringes around their base. Etch-rate modelling of a non-planar surface and diffraction-modulated fluence is used to explore how cones may evolve, and an estimate is made of thermal loading on microcones. |
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