共轭匹配的单轴超材料是非常有效的吸收器、发射器和反射器

C. Valagiannopoulos, C. Simovski, S. Tretyakov
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引用次数: 0

摘要

电磁能量从源无线传输到用户的速度是许多电子和光子器件性能的关键参数。在本演示中,我们确定了一种介质的组成参数,该参数在理论上支持靠近介质样品表面的无限能量集中;这种材料结合了完全匹配层(PML)和双负(DNG)介质的特性。它实现了所有可能模态的与自由空间的共轭匹配,其中最重要的是所有的消失模态。我们表明,在共轭匹配体附近的极高振幅谐振场可以使用随机放置的粒子产生大的远场辐射,这些粒子起发射“容器”的作用。
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Conjugately-matched uniaxial metamaterials make extremely efficient absorbers, emitters, and reflectors
The speed with which electromagnetic energy can be wirelessly transferred from a source to the user is a crucial parameter for performance of a large number of electronic and photonic devices. In this presentation we determine the constituent parameters of a medium which supports theoretically infinite energy concentration close to a medium sample surface; such a material combines properties of Perfectly Matched Layers (PML) and Double-Negative (DNG) media. It realizes conjugate matching with free space for every possible mode including, most importantly, all evanescent modes. We show that extremely high-amplitude resonating fields in the vicinity of a conjugately matched body can create large far-field radiation with the use of randomly placed particles which play the role of emission “vessels”.
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