Single-Step Laser Plasmonic Coloration of Metal Films,ACS Applied Materials & Interfaces

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Single-Step Laser Plasmonic Coloration of Metal Films
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2017-12-27 00:00:00 , DOI: 10.1021/acsami.7b16339
Xuewen Wang ₁ , Aleksandr Kuchmizhak _{2,

3} , Dmitry Storozhenko _{2,

3} , Sergey Makarov ₄ , Saulius Juodkazis _{1,

5}

Affiliation

Utilization of structural colors produced by nanosized optical antennas is expected to revolutionize the current display technologies based on an inkjet or a pigmentation-based color printing. Meanwhile, the versatile color-mapping strategy combining the fast single-step single-substrate fabrication cycle with low-cost scalable operation is still missing. We propose lithography-free pure optical approach based on a direct local ablative reshaping of the gold film with nanojoule (nJ)-energy femtosecond laser pulses. Plasmon-color printing at a resolution up to 2.5 × 10⁴ dots per inch satisfying the current visualization demands and data storage capacity is achieved. By controlling only the applied pulse energy, wide gamut of colors in scattering regime was reproduced via tuning the size of the printed nanovoids, which have a polarization- and shape-dependent localized plasmon-mediated scattering. Additionally, brightness of a single pixel was gradually adjusted via varying of the spacing between the printed nanovoids. The presented experimental demonstration opens a new direction toward plasmon-color printing for various applications where durability is required: low-cost cryptography, security tagging, and ultracompact optical data storage.

中文翻译：

金属膜的单步激光等离子着色

期望利用由纳米尺寸的光学天线产生的结构颜色来改变基于喷墨或基于色素沉着的彩色印刷的当前显示技术。同时，仍然缺少将快速单步单基板制造周期与低成本可扩展操作相结合的通用颜色映射策略。我们提出了一种无光刻的纯光学方法，该方法基于纳米薄膜（nJ）-能量飞秒激光脉冲对金膜的直接局部烧蚀整形。等离子彩色打印，分辨率高达2.5×10 ⁴每英寸点数满足当前的可视化要求，并实现了数据存储容量。通过仅控制所施加的脉冲能量，通过调整印刷的纳米空隙的尺寸，可以在散射状态下再现宽色域，这些纳米空隙具有与偏振和形状有关的局部等离激元介导的散射。另外，通过改变印刷的纳米空隙之间的间隔来逐渐调节单个像素的亮度。提出的实验演示为需要耐用性的各种应用打开了等离激子彩色印刷的新方向：低成本密码学，安全标签和超紧凑型光学数据存储。

更新日期：2017-12-27

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