论文标题
电线超材料填充的金属谐振器
Wire metamaterial filled metallic resonators
论文作者
论文摘要
在这项工作中,我们研究了最近搜索轴的谐振器的电磁特性,这是一种解释暗物质的假设候选者。电线中型载荷器(用于搜索暗物质时称为等离子体吊带板)由一个盒子组成,这些盒子充满了一系列密集的平行线,这些平行线电线是电,并连接到顶部和底壁。我们表明,电线培养基的均质化模型在没有介绍校正的情况下为该谐振器起作用,并且以我们的兴趣频率下降的谐振器质量$ q $降低了与谐振器体积$ v $的增长,直到电线中的电阻损失支配。我们发现,即使在像铜这样的室温金属下,也可以在数千个中提供质量因素,比最初假设高的数量级。通过构建实验原型,确认了我们对负载和卸载谐振器质量因子的理论结果。我们讨论了进一步改善WM加载的谐振器的方法。
In this work we study electromagnetic properties of a resonator recently suggested for the search of axions - a hypothetical candidate to explain dark matter. A wire medium loaded resonator (called a plasma haloscope when used to search for dark matter) consists of a box filled with a dense array of parallel wires electrically connected to top and bottom walls. We show that the homogenization model of wire medium works for this resonator without mesoscopic corrections, and that the resonator quality $Q$ at the frequency of our interest drops versus the growth of the resonator volume $V$ until it is dominated by resistive losses in the wires. We find that even at room temperature metals like copper can give quality factors in the thousands, an order of magnitude higher than originally assumed. Our theoretical results for both loaded and unloaded resonator quality factors were confirmed by building an experimental prototype. We discuss ways to further improve WM loaded resonators.