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首页> 外文期刊>Optics Letters >Maskless laser tailoring of conical pillar arrays for antireflective biomimetic surfaces
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Maskless laser tailoring of conical pillar arrays for antireflective biomimetic surfaces

机译：锥形柱阵列的无掩模激光裁剪，用于抗反射仿生表面

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摘要

Herein, we report a facile approach for rapid and maskless production of subwavelength structured antireflective surfaces with high and broadband transmittance--direct laser interference ablation. The interfered laser beams were introduced into the surface of a bare optical substrate, where structured surfaces consisting of a micropillar array were produced by two-step laser irradiation in the time frame of seconds. A multiple exposure of the two-beam interference approach was proposed instead of multiple-beam interference to simply realize planar patterns of a high aspect ratio. Tall sinusoidal pillars were created and shaped by pulse shot number control. As an example of the application, zinc sulfide substrates were processed with the technology, from which high transmission at an infrared wavelength, over 92percent, at normal incidence was experimentally achieved.
机译：在本文中，我们报告了一种快速且无掩模的亚波长结构抗反射表面的快速生产方法，该表面具有高且宽带的透射率-直接激光干涉烧蚀。被干扰的激光束被引入裸露的光学基板的表面，在该光学基板的表面上，通过微秒阵列的两步激光辐照产生了由微柱阵列组成的结构化表面。为了简单地实现高纵横比的平面图案，提出了使用双光束干涉方法的多重曝光而不是多光束干涉。高高的正弦柱通过脉冲数控制来创建和成形。作为应用实例，使用该技术对硫化锌基板进行了处理，从中可以实验得出在垂直入射时红外波长的透射率高达92％以上。

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