arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0908.2574physics.opticscond-mat.mtrl-sci
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一个通用的斗篷,以改变不同物体的散射

A general cloak to shift the scattering of different objects

Wei Li, Jianguo Guan, Wei Wang, Zhigang Sun, Zhengyi Fu

摘要:

通过引入“缩小层”的概念,我们提出了一种通用的装置来隐藏目标的位置,它通过移动目标的散射而不产生一定距离的缩放效应,与入射波的方向和观测无关。不像以前报道的类似的斗篷,其配置是相关的对象被掩盖。这里的设计能够通过一个斗篷来改变各种物体的散射。此外,通过调节“缩小层”的参数,还可以实现对频移散射的可调放大甚至缩小。通过有限元模拟证明了器件的性能。该设计提供了一种更灵活的方法来改变目标的散射,因此可以预期具有广泛的应用。

英文摘要:

By introducing a concept of "minifying layer", we propose a universal device to hide the position of an object by shifting its scattering without scaling effect for a distance, independent of the direction of incident wave and observation. Unlike the previously reported similar cloaks whose configurations are relevant to the objects to be cloaked. The design here is able to shift the scattering of various objects by one cloak. Moreover, via adjusting the parameter of the "minifying layer", tunable magnifying or even minifying effect on the shifted scattering can also be achieved. The performances of the devices are demonstrated by finite element simulations. This design provides a more flexible way to shift the scattering of an object, and thus can be expected to have wide applications.

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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