Metamaterial electromagnetic cloak at microwave frequencies

被引:6388
作者
Schurig, D.
Mock, J. J.
Justice, B. J.
Cummer, S. A.
Pendry, J. B.
Starr, A. F.
Smith, D. R.
机构
[1] Duke Univ, Dept Elect & Comp Engn, Durham, NC 27708 USA
[2] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Dept Phys, London SW7 2AZ, England
[3] SensorMetrix, San Diego, CA 92121 USA
关键词
D O I
10.1126/science.1133628
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
A recently published theory has suggested that a cloak of invisibility is in principle possible, at least over a narrow frequency band. We describe here the first practical realization of such a cloak; in our demonstration, a copper cylinder was "hidden" inside a cloak constructed according to the previous theoretical prescription. The cloak was constructed with the use of artificially structured metamaterials, designed for operation over a band of microwave frequencies. The cloak decreased scattering from the hidden object while at the same time reducing its shadow, so that the cloak and object combined began to resemble empty space.
引用
收藏
页码:977 / 980
页数:4
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