Rustomji K, Abdeddaim R, Achard J, Chmiaa M, Georget E, Goniche M, Helou W, Hillairet J, Enoch S, Tayeb G
Aix Marseille Univ, CNRS, Centrale Marseille, Institut Fresnel, Marseille, France.
Centre for Ultrahigh Bandwidth Devices for Optical Systems and Institute of Photonics and Optical Science, School of Physics, University of Sydney, Sydney, NSW 2006, Australia.
Sci Rep. 2018 Apr 11;8(1):5841. doi: 10.1038/s41598-018-24250-0.
This paper reports a fishnet hyperbolic metamaterial that mimics the electromagnetic properties of magnetically confined plasma. These electromagnetic properties are strongly anisotropic and different from any conventional material, therefore cannot be mimicked by bulk materials. The structure is made of a stack of thin copper grids spaced by Rohacell foam. We numerically and experimentally show that this kind of structuration matches well the properties of a homogeneous plasma. This solution breaks a long-lasting bottleneck and will accelerate the development of high-frequency heating systems to be used in nuclear fusion.
本文报道了一种模仿磁约束等离子体电磁特性的渔网型双曲线超材料。这些电磁特性具有很强的各向异性，与任何传统材料都不同，因此无法被块状材料模仿。该结构由一叠由罗哈塞尔泡沫隔开的薄铜网格组成。我们通过数值模拟和实验表明，这种结构与均匀等离子体的特性非常匹配。该解决方案打破了长期存在的瓶颈，并将加速用于核聚变的高频加热系统的发展。
