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Laser Nanopatterning of Colored Ink Thin Films for Photonic Devices

机译:用于光子器件的彩色墨水薄膜的激光纳米透视

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摘要

Nanofabrication through conventional methods such as electron beam writing and photolithography is time-consuming, high cost, complex, and limited in terms of the materials which can be processed. Here, we present the development of a nanosecond Nd:YAG laser (532 nm, 220 mJ) in holographic Denisyuk reflection mode method for creating ablative nanopatterns from thin films of four ink colors (black, red, blue, and brown). We establish the use of ink as a recording medium in different colors and absorption ranges to rapidly produce optical nanostructures in 1D geometries. The gratings produced with four different types of ink had the same periodicity (840 nm); however, they produce distant wavelength dependent diffraction responses to monochromatic and broadband light. The nanostructures of gratings consisting of blue and red inks displayed high diffraction efficiency of certain wavelengths while the black and brown ink based gratings diffracted broadband light. These gratings have high potential to be used as low-cost photonic structures in wavelength-dependent optical filters. We anticipate that the rapid production of gratings based on different ink formulations can enable optics applications such as holographic displays in data storage, light trapping, security systems, and sensors.
机译:通过常规方法如电子束写入和光刻是耗时,高成本,复杂的常规方法的纳米制剂,并且就可以处理的材料而言,并且可以加工的材料。在这里,我们在全息Denisyuk反射模式方法中提出了纳秒Nd:YAG激光(532nm,220mJ)的开发,用于从四种墨水(黑色,红色,蓝色和棕色)的薄膜产生烧蚀纳米透镜。我们建立墨水用作不同颜色的记录介质,并且吸收范围以快速生产1D几何形状中的光学纳米结构。用四种不同类型的油墨生产的光栅具有相同的周期性(840nm);然而,它们产生与单色和宽带光的远处波长依赖性衍射响应。由蓝色和红色油墨组成的光栅的纳米结构显示了某些波长的高衍射效率,而黑色和棕色墨水的光栅衍射宽带光。这些光栅具有高电位,以用作波长依赖性光学过滤器中的低成本光子结构。我们预计基于不同的油墨配方的快速生产可以实现光学应用,例如数据存储,光捕获,安全系统和传感器中的全息显示。

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