کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7127844 | 1461591 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thin film enabling sub-250â¯nm nano-ripples on glass by low fluence IR picosecond laser irradiation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی برق و الکترونیک
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چکیده انگلیسی
Well-aligned parallel nanoripples, with spacing down to 250â¯nm, were engraved on a glass surface at a fluence 8 times less than the ablation threshold of glass using IR (λâ¯=â¯1032â¯nm) picosecond laser system with a pulse duration of 10â¯ps. The glass surface was first coated with 175â¯nm ITO thin film prior to laser scanning. The nano-ripples were formed on the underlying glass surface during the selective removal of ITO thin film using substantially less fluence than that required without ITO on the glass surface. The laser scan speed and repetition rate determine the spatial overlapping of pulses (shots per area, SPA); this greatly influences the symmetry, spacing, and depth of the ripples achieved. The fluence ranging from 1.13 to 1.56â¯Jâ¯cmâ2 at scanning speed of 0.5â¯msâ1, 25 SPA, 96% overlapping at laser repetition of 400â¯kHz was found to be the optimal laser parameters for generating nano-ripples with 0.25λ periodicity on large area glass surface. The process offers the opportunity for gratings to be integrated in structures consisting of transparent conductive materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics & Laser Technology - Volume 108, December 2018, Pages 26-31
Journal: Optics & Laser Technology - Volume 108, December 2018, Pages 26-31
نویسندگان
Nazar Farid, Daniel Nieto, Gerard M. O'Connor,