Two-Dimensional Active Tuning of an Aluminum Plasmonic Array for Full-Spectrum Response,Nano Letters

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Two-Dimensional Active Tuning of an Aluminum Plasmonic Array for Full-Spectrum Response
Nano Letters ( IF 9.6 ) Pub Date : 2017-09-13 00:00:00 , DOI: 10.1021/acs.nanolett.7b02350
Ming Lun Tseng ₁ , Jian Yang ₁ , Michael Semmlinger ₁ , Chao Zhang ₁ , Peter Nordlander ₁ , Naomi J. Halas ₁

Affiliation

Color pixels composed of plasmonic nanostructures provide a highly promising approach for new display technologies, capable of vivid, robust coloration and incorporating the use of low-cost plasmonic materials, such as aluminum. Here we report a plasmonic device that can be tuned continuously across the entire visible spectrum, based on integrating a square array of aluminum nanostructures into an elastomeric substrate. By stretching the substrate in either of its two dimensions, the period and therefore the scattering color can be modified to the blue or the red of the at-rest structure, spanning the entire visible spectrum. The unique two-dimensional design of this structure enables active mechanical color tuning, under gentle elastic modulation with no more than 35% strain. We also demonstrate active image switching with this structure. This design strategy has the potential to open the door for next-generation flexible photonic devices for a wide variety of visible-light applications.

中文翻译：

铝等离子体阵列的二维主动调谐，可实现全光谱响应

由等离激元纳米结构组成的彩色像素为新的显示技术提供了一种非常有前途的方法，该技术能够生动，强大地着色并结合使用低成本的等离激元材料（例如铝）。在这里，我们报告了一种等离子装置，该装置可以将铝纳米结构的方形阵列集成到弹性体基底中，并且可以在整个可见光谱范围内连续进行调谐。通过在其两个维度中的任意一个方向上拉伸基板，可以将周期以及因此散射的颜色更改为静止结构的蓝色或红色，从而覆盖整个可见光谱。这种结构的独特二维设计可以在不超过35％应变的柔和弹性调制下进行主动的机械色彩调节。我们还演示了这种结构的主动图像切换。

更新日期：2017-09-13

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