Brilliant plasmonic colors with long‐standing stability are generated via laser direct writing. This plasmonic coloring system is made of silver nanoparticles (Ag NPs) layer embedded in the quartz glass formed by ion implantation. The laser‐induced plasmonic heating merges the small Ag NPs into larger ones, which modifies the plasmon resonances. The plasmon resonances can be further tuned via changing the irradiation time and power, which shows scattering colors ranging from red to green and cyan. By scanning the laser across the Ag NPs layer, sophisticated plasmonic patterns and images with high resolution (≈10⁵ DPI) can be obtained and preserved over long time (several months). This plasmonic coloring system via laser printing is facile, cost‐effective, accurate, and highly stable with rich hue, compared to other plasmonic color systems, which bears significant potentials for industrial applications such as optics, displays, decorations, data storage, and anti‐counterfeiting.

中文翻译：

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通过激光直写产生高质量，均匀且稳定的等离子着色剂

通过激光直接写入可产生具有长期稳定性的出色等离激元颜色。该等离子体着色系统由嵌入在通过离子注入形成的石英玻璃中的银纳米颗粒（Ag NPs）层制成。激光诱导的等离子体激元加热将小的Ag NP合并为较大的NP，从而改变了等离子体激元共振。可以通过改变辐照时间和功率来进一步调整等离振子共振，从而显示出从红色到绿色和青色的散射色。通过高分辨率扫描激光穿过的Ag纳米颗粒层中，等离子体激元复杂图案和图像（≈10 ⁵DPI）可以长期保存（数月）。与其他等离子彩色系统相比，这种通过激光打印的等离子彩色系统简便，经济高效，准确且高度稳定，具有丰富的色彩，在光学，显示器，装饰，数据存储和防反光等工业应用方面具有巨大潜力假冒。