Integrated structural color array enabled by ultrathin silver film via cavity-enhanced absorption

Integrated structural color array enabled by ultrathin silver film via cavity-enhanced absorption
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超薄银膜通过腔增强吸收实现集成结构颜色阵列

DOI:
10.1007/s11082-018-1427-y
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发表时间:
2018-03
期刊:
Opt Quant Electron
影响因子:
--
通讯作者:
Feng Liu
Feng Liu
中科院分区:
其他
文献类型:
--
作者:
Yi Zhang;Junli Duan;Mingfei Wu;Ying Zhi;Xiaowen Li;Yikai Zhou;Wangzhou Shi;Feng Liu

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在这项工作中,我们实验证明了增强的吸收共振,通过反射光的解构干涉,在一个夹层纳米结构组成的银银层,透明的二氧化硅腔,和不透明的金属基板(例如,300-nm Ag)。这种腔增强的吸收是可调的,通过调制的吸收性银银层或嵌入的透明SiO2腔的厚度,引起可调的结构着色。通过五次沉积工艺,成功制备出32通道彩色样品。我们相信这些概念和结果表明,这种可吸收薄膜为我们开发各种光子应用提供了前所未有的机会,如标签,视觉艺术和光学滤波器。
In this work, we experimentally demonstrate enhanced absorption resonance enabled by the deconstructive interference of the reflected light in a sandwiched nanostructures composing of the ultrathin silver layer, transparent SiO2cavity, and the opaque metallic substrate (e.g., 300-nm Ag). Such cavity-enhanced absorption is tunable via modulating the thickness of the absorptive ultrathin silver layer or the embedded transparent SiO2cavity, giving rise to tunable structural coloration. Through five deposition processes, a 32-channel colorful sample is successfully fabricated. We believe the concepts and results make it evident that such ultrathin absorptive film offers us unprecedented opportunities on developing various photonic applications such as labeling, visual arts, and optical filters.
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