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Metasurface-enabled beam shaping for sustainable super-resolution focusing devices

用于可持续超分辨率聚焦设备的超表面光束整形

基本信息

批准号：
2281193
负责人：
金额：
--
依托单位：
Newcastle University
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2019
资助国家：
英国
起止时间：
2019 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2281193
关键词：
Metasurface enabled beam shaping sustainable

项目摘要

For decades the controlling of light matter interaction has been of great interest to both the scientific and the industrial communities. The propagation of waves can be manipulated through the use of various materials and/or geometries of the medium where the wave is propagating.Since the early 2000's metamaterials (MTMs) and their 2D counterpart, metasurfaces (MTSs), have been proposed as a means of achieving electromagnetic (EM) responses which natural materials are not capable of achieving (Engeta N, 2006). However, despite these unnatural effects they are inspired by nature being composed of periodically arranged small metallic-dielectric geometries which are smaller than the incident wavelength. This results in the wave observing a homogeneous medium rather than the individual geometries used to create them. This enables the ability to tailor the EM properties of such artificial media by properly engineering the materials, arrangement and geometries used. In doing so, the use of MTMS and MTSs opens new paths to improve the performance of devices in a wide range of applications such as antennas and sensors.In this realm, the development of MTMs has been of great benefit to focusing devices such as lens-antennas and imaging applications. However, such applications have been hindered due to their narrow band designs. This causes them to be difficult for applications where broadband responses are required. Nowadays, there is a worldwide commitment to design devices as much reliable as possible and with reconfigurable properties. This is due to the fact that there is a growing amount of e-waste (electronic waste) being produced globally because of the materials involved in their design: mainly metals and dielectrics (plastics, ceramics etc.). These materials take a considerable time to degrade, from hundreds to thousands of years. In this context, MTMs and MTSs suffer from the same issue because they are basically made with the same raw materials. Therefore, it is important to address the possibility of environmental issues in the early stages of development of these artificial electromagnetic media at this stage where they are still under development.This project will be inspired by the exciting opportunities presented by the incredibly broad uses of MTMs and MTSs and working to make them reconfigurable while using sustainable and environmentally friendly technologies. I will be studying the governing physics laws with regards to metamaterials to gain an understanding of the EM responses required and then designing these materials to be demonstrated experimentally. All the while a wide range of reconfigurable and sustainable materials will be tested for their application into these designs as to alleviate the issues of technological waste. This will lead to the development of ultra-compact, low-costing and super-resolution imaging applications using biodegradable materials while having the capability of being reconfigured. These imaging applications will be developed at different frequency ranges with emphasis to the Terahertz frequency range due the opportunities it offers to fields such as high-speed communications and biomedical imaging.

几十年来，控制轻物质相互作用一直是科学界和工业界非常感兴趣的问题。波的传播可以通过使用传播波的介质的各种材料和/或几何形状来操纵。自2000年初以来，S超材料(MTM)和它们的2D对应物超表面(MTSS)被提出作为一种实现自然材料无法实现的电磁(EM)响应的手段(Engeta N，2006)。然而，尽管有这些不自然的影响，它们的灵感来自于自然由周期性排列的小金属-介电几何图形组成，这些几何图形小于入射波长。这导致波观察到一个均匀的介质，而不是用来创建它们的各个几何图形。这使得能够通过适当地设计所使用的材料、排列和几何形状来定制这种人造介质的电磁特性。在这种情况下，MTMS和MTSS的使用为提高设备在天线和传感器等广泛应用中的性能开辟了新的途径。在这一领域，MTMS的发展对透镜天线和成像应用等聚焦设备具有极大的好处。然而，由于其窄带设计，这种应用受到了阻碍。这使得它们对于需要宽带响应的应用来说是困难的。如今，全世界都在致力于设计尽可能可靠和具有可重新配置特性的设备。这是因为全球产生的电子垃圾(电子垃圾)越来越多，因为它们的设计所涉及的材料：主要是金属和电介质(塑料、陶瓷等)。这些材料需要相当长的时间才能降解，从几百年到几千年。在这方面，MTM和MTSS面临着同样的问题，因为它们基本上是用相同的原材料制造的。因此，重要的是在这些人工电磁介质仍处于开发阶段的早期阶段解决环境问题的可能性。该项目将受到MTM和MTSS令人难以置信的广泛使用带来的令人兴奋的机会的启发，并努力使它们在使用可持续和环境友好的技术的同时进行重新配置。我将研究与超材料有关的主导物理定律，以了解所需的电磁响应，然后设计这些材料进行实验演示。与此同时，将对各种可重新配置和可持续材料进行测试，以将其应用于这些设计，以减轻技术浪费的问题。这将导致使用可生物降解材料的超紧凑、低成本和超分辨率成像应用的开发，同时具有重新配置的能力。这些成像应用将在不同的频率范围内开发，重点是太赫兹频率范围，因为它为高速通信和生物医学成像等领域提供了机会。

项目成果

期刊论文数量（6）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Plasmonic meniscus lenses.

DOI：
10.1038/s41598-022-04954-0
发表时间：
2022-01-18
期刊：
Scientific reports
影响因子：
4.6
作者：
Riley JA;Healy N;Pacheco-Peña V
通讯作者：
Pacheco-Peña V

Exploiting meniscus lenses for surface plasmons focusing

利用弯月透镜进行表面等离子体聚焦

DOI：
发表时间：
2021
期刊：
影响因子：
0
作者：
Riley J A
通讯作者：
Riley J A

Manipulating Surface Plasmons Propagation Using Ultra-Compact and Non-Dielectric Designs

DOI：
10.1109/metamaterials49557.2020.9285072
发表时间：
2020-09
期刊：
2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials)
影响因子：
0
作者：
J. Riley;N. Healy;V. Pacheco-Peña
通讯作者：
J. Riley;N. Healy;V. Pacheco-Peña

Unidirectional transparency in epsilon-near-zero based rectangular waveguides induced by parity-time symmetry