瓶中彩虹：通过可聚合多重乳胶粒子设计实现显微光学效应
Rainbows in a bottle: Realizing microoptic effects by polymerizable multiple emulsion particle design
摘要：
在自然界中，结构色的产生是基于与光的波长范围内的物理结构相关联的辨别性光传播。这些虹彩结构色具有巨大的意义2，但不容易通过实验控制，因此难以用于应用。在这项工作中，我们采用微流体技术来产生可聚合的双重乳液，不仅可以诱导已知的透镜效应3，而且还可以导致白光的光谱分离。在这里，构成乳剂的折射率不同的液体产生了彩虹色的图案。聚合后，内乳液核塌陷，这导致这些聚合物微球上的弯曲凹面。有趣的是，沿着弯曲表面的光传播经历全内反射，然后沿着聚合微球上的出口结构发生近场干涉4。这些能够产生颜色分散的结构化聚合物颗粒可用于光学器件、显示器甚至传感技术。
英文摘要：
In nature, structural colour generation is based on discriminative light propagation associated with physical structures in the range of the wavelengths of light1. These iridescent structural colours are of immense significance2 but not easy to control experimentally and therefore difficult to exploit for applications. In this work, we employ microfluidics to produce polymerizable double emulsions that can not only induce the already known lensing effect3 but also result in the spectral separation of white light. Here, liquids of varying refractive in-dex that constitute the emulsions resulted in patterns of iridescent colours. After polymerization, the inner emulsion cores collapse and this results in curved concave surfaces on these polymeric microspheres. Interestingly, the light propagation along the curved surfaces undergo total internal reflection, followed by near-field interference along exit structures on the polymerized microspheres4. These structured polymeric particles that are able to generate colour dispersions can be exploited for optical devices, displays and even sensing technologies.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
