Conformable holographic metasurfaces for industrial imaging and sensing applications

适用于工业成像和传感应用的一致全息超表面

• 批准号: 2898395
• 金额: --
• 依托单位: University of St Andrews
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2898395
• 关键词: Conformable; holographic; metasurfaces; industrial; imaging

Photonic metasurfaces are nano-structured films that can be designed to exhibit tailored light scattering. The phase, amplitude, polarisation and propagation of direction of the reflected and transmitted light can be controlled virtually at will. When used to record holographic information, photonic metasurfaces present many advantages over standard computer-generated holographic devices, mostly related to their ultrathin form factor (a thousand times thinner than conventional diffraction optical elements) and subwavelength dimension of the pixels. Moreover, holographic metasurfaces can be realised in flexible and conformable substrates, which makes them the ideal platform for out of the lab implementation. Ceres Holographics is a leading company in holographic solutions for automotive applications and in this project has partnered with the groups of Synthetic Optics and Organic Semiconductors to take the metasurface technology one step closer to industrial, real-world applications. The aim of the project is to develop a viable and sustainable design and manufacturing pathway for flexible holographic metasurfaces for augmented vision applications. The student will learn how to design holographic metasurfaces for non-flat shapes and develop a scalable fabrication technique based on nanolithography and nanoimprinting. Additionally, the student will exploit the unique properties of metasurfaces to embed sensing capabilities, so that the holographic imaging would depend on specific environmental conditions. This work will be complemented by an extensive experimental activity and completed exploiting the facilities available in the School of Physics and Astronomy of the University of St Andrews and at Ceres Holographics.

光子超表面是纳米结构的薄膜，可以被设计成显示定制的光散射。反射光和透射光的相位、振幅、偏振和传播方向几乎可以任意控制。当用于记录全息信息时，光子超表面呈现出许多优于标准计算机生成的全息设备的优点，主要与它们超薄的外形因素（比传统衍射光学元件薄一千倍）和像素的亚波长尺寸有关。此外，全息超表面可以在柔性和符合要求的衬底上实现，这使它们成为实验室外实现的理想平台。Ceres Holographics是一家领先的汽车全息解决方案公司，在这个项目中，它与合成光学和有机半导体团队合作，使超表面技术更接近工业和现实世界的应用。该项目的目的是为增强视觉应用的柔性全息超表面开发一个可行和可持续的设计和制造途径。学生将学习如何设计非平面形状的全息超表面，并开发基于纳米光刻和纳米压印的可扩展制造技术。此外，学生将利用超表面的独特属性来嵌入传感能力，使全息成像能够依赖于特定的环境条件。这项工作将由广泛的实验活动补充，并利用圣安德鲁斯大学物理与天文学院和谷神星全息术的现有设施完成。