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Exciting Voigt surface waves

令人兴奋的福伊特表面波

基本信息

批准号：
EP/V046322/1
负责人：
Tom Mackay
金额：
$ 25.77万
依托单位：
University of Edinburgh
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2021
资助国家：
英国
起止时间：
2021 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FV046322%2F1
关键词：
Exciting Voigt surface waves

项目摘要

Electromagnetic surface waves propagate at the interface of two dissimilar partnering materials. Since the beginning of the twentieth century, several different types of electromagnetic surface wave have been identified. Very recently two new types of electromagnetic surface wave were theoretically discovered. These new types of electromagnetic surface waves differ fundamentally from all previously known types of electromagnetic surface waves by the manner in which these surface waves are localized at the interface. The unique localization properties of these new surface waves lend themselves to applications involving optical communications and optical sensing, for examples. To date, the theory developed only establishes the existence of these new surface waves for an idealized configuration. The question of how these surface waves may be excited in a practical configuration has not yet been addressed. It is proposed to further develop the theory to accommodate the excitation of these new surface waves for practical configurations. This research involves coupling the interface of the partnering materials to incident light by means of a prism or alternatively by means of a diffraction grating. Furthermore, the theory developed to date only establishes the existence of these new surface waves for the simplest possible partnering materials. Considerably greater scope for these new surface waves is offered by more complex partnering materials. It is therefore proposed to develop the theory to accommodate more complex partnering materials, including bianisotropic partnering materials and nonhomogeneous materials. Bianisotropic materials offer much greater scope for surface-wave propagation than do anisotropic or isotropic materials, because of intrinsic coupling between electric and magnetic fields and the much larger constitutive parameter space that is associated with bianisotropic materials. Such complex partnering materials may facilitate the excitation of multiple surface waves, which is a desirable property for potential applications in optical communications and optical sensing, for examples.

电磁表面波在两种不同配对材料的界面处传播。自二十世纪初以来，已经确定了几种不同类型的电磁表面波。最近，理论上发现了两种新的电磁表面波。这些新型的电磁表面波与以前已知的所有类型的电磁表面波根本不同，因为这些表面波在界面上定位的方式。例如，这些新的表面波的独特定位特性使它们能够应用于光通信和光传感等领域。到目前为止，该理论仅确立了这些新的表面波在理想化结构中的存在。这些表面波如何在实际配置中被激发的问题尚未得到解决。建议进一步发展理论，以适应这些新的表面波的实际构型的激发。这项研究涉及到通过棱镜或衍射光栅的方法将配对材料的界面耦合到入射光。此外，迄今为止发展的理论只确定了这些新的表面波存在于最简单的可能的配对材料中。更复杂的合作材料为这些新的表面波提供了更大的空间。因此，建议发展理论以适应更复杂的配对材料，包括双各向异性配对材料和非均匀材料。与各向异性或各向同性材料相比，双各向异性材料提供了更大的表面波传播范围，因为电场和磁场之间存在固有耦合，并且双各向异性材料具有更大的本构参数空间。这种复杂的配对材料可能有助于激发多个表面波，这是光通信和光传感等潜在应用的理想特性。

项目成果

期刊论文数量（10）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Thermal hysteresis in scattering by VO2 spheres.

DOI：
10.1364/josaa.463159
发表时间：
2022-07
期刊：
Journal of the Optical Society of America. A, Optics, image science, and vision
影响因子：
0
作者：
A. Lakhtakia;T. Mackay;Waleed Iqbal Waseer
通讯作者：
A. Lakhtakia;T. Mackay;Waleed Iqbal Waseer

Thermal hysteresis in amplification and attenuation of surface-plasmon-polariton waves

表面等离子体激元波放大和衰减的热滞后