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arXiv 1505.06352physics.optics
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热场和电场同时独立调控的双功能超材料

Bifunctional Metamaterials with Simultaneous and Independent Manipulation of Thermal and Electric Fields

Chuwen Lan, Bo Li, Ji Zhou

摘要:

超材料提供了一种强大的方式来操纵各种物理场,从波场(电磁场,声场,弹性波等),静态场(静态磁场、静态电场)到扩散场(热场、扩散质量)。然而,相关的报告和研究通常是在单一的物理领域或功能上进行的。在这项研究中,我们提出并实验证明了一种双功能的超材料,可以同时和独立地操纵热和电场。具体而言,介绍了一种导热率和导电率独立可控的复合材料,并在此基础上设计、制备和表征了一种能够同时屏蔽热流和集中电流的双功能器件。这项工作提供了一个令人鼓舞的例子,超材料超越了他们的自然限制,这提供了一个广阔的平台,为操纵多物理场的前景。

英文摘要:

Metamaterials offer a powerful way to manipulate a variety of physical fields ranging from wave fields (electromagnetic field, acoustic field, elastic wave, etc.), static fields (static magnetic field, static electric field) to diffusive fields (thermal field, diffusive mass). However, the relevant reports and studies are usually conducted on a single physical field or functionality. In this study, we proposed and experimentally demonstrated a bifunctional metamaterial which can manipulate thermal and electric fields simultaneously and independently. Specifically, a composite with independently controllable thermal and electric conductivity was introduced, on the basis of which a bifunctional device capable of shielding thermal flux and concentrating electric current simultaneously was designed, fabricated and characterized. This work provides an encouraging example of metamaterials transcending their natural limitations, which offers a promising future in building a broad platform for manipulation of multi-physics field.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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