Zhang Feifei, Martin Jérôme, Murai Shunsuke, Plain Jérôme, Tanaka Katsuhisa
Opt Express. 2020 Aug 31;28(18):25989-25997. doi: 10.1364/OE.402170.
Plasmonic color using metallic nanostructures has attracted considerable interest because of its subwavelength resolution and long sustainability. Significant efforts have been devoted to expanding the gamut of plasmonic color generation by tuning the composition, shape, and components in the primary pixel. In this study, we develop a novel and straightforward strategy for aluminum plasmonic color printing aimed at practical commercial applications. An array of aluminum nanodisks is designed for the broadband scattering of white pixels instead of the three primary colors. Examples presented include trademark and QR codes, which are common in the market of consumer advertising and item identification, that are encoded and fabricated in experiments with aluminum white color pixels to demonstrate feasibility. This simple and efficient strategy is compatible with cost-effective industrial fabrication methods, such as photolithography and nanoimprinting, and requires relatively simpler manufacturing procedures. Therefore, a new path is opened for the future with the extensive use of plasmonic color printing.
利用金属纳米结构的表面等离子体激元颜色因其亚波长分辨率和长期稳定性而备受关注。人们已经付出了巨大努力，通过调整原色像素的组成、形状和成分来扩大表面等离子体激元颜色生成的色域。在本研究中，我们针对实际商业应用开发了一种新颖且直接的铝表面等离子体激元彩色打印策略。设计了一系列铝纳米盘用于白色像素的宽带散射，而非三种原色。给出的示例包括商标和二维码，它们在消费广告和物品识别市场中很常见，在实验中用铝白色像素进行编码和制作以证明其可行性。这种简单高效的策略与具有成本效益的工业制造方法（如光刻和纳米压印）兼容，并且需要相对更简单的制造程序。因此，随着表面等离子体激元彩色打印的广泛应用，为未来开辟了一条新途径。
