Realization of diverse displays for multiple color patterns on metal surfaces

Realization of diverse displays for multiple color patterns on metal surfaces
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实现金属表面多种颜色图案的多样化显示

DOI:
10.1016/j.apsusc.2014.08.030
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发表时间:
2014-10
影响因子:
6.7
通讯作者:
Huang Wenhao
Huang Wenhao
中科院分区:
材料科学1区
文献类型:
--
作者:
Li Guoqiang;Li Jiawen;Hu Yanlei;Zhang Chenchu;Li Xiaohong;Chu Jiaru;Huang Wenhao

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当白色光照射在飞秒激光诱导的表面波纹上时,可以形成增强的颜色。在本文中,我们已经证明了通过同时调节入射白色光的角度和波纹方向来显示不同颜色的能力。此外,我们的研究表明,可以在金属表面上设计由不同方向的波纹构成的多图案。通过巧妙地改变入射光角度和旋转样品角度,可以实现所需图像的多样化显示。更有趣的是,发现虽然相同的图案可以在不同的条件下显示,但颜色可能不同。这些发现为高容量信息的携带和识别提供了一种新的方法,在信息存储、识别码和防伪图案等领域具有潜在的应用前景。
Enhanced colors can be formed when white light is irradiated on the surface ripples induced by femtosecond laser. In this paper, we have demonstrated the ability to display the diverse colors by simultaneously adjusting the incident white light angle and the ripples orientation. Furthermore, our investigation revealed that multi-patterns constituted by ripples with different orientations could be designed on metal surfaces. The diverse display for the desired ones can be realized by exquisitely varying the incident light angle and rotating sample angle. More interestingly, it is found that, although the same patterns could be displayed under different conditions, the colors might be different. These findings can provide a novel method to carry and identify high quantity of information, which may find potential applications in the fields of information storage, identifying codes and anti-counterfeiting patterns.
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