期刊
SCIENCE
卷 323, 期 5910, 页码 110-112出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1166332
关键词
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资金
- European Union Contract Computing with Mesoscopic Photonic and Atomic States [MSM0021622409, MSM0021622419]
- Royal Society Wolfson Research Merit Award
- Engineering and Physical Sciences Research Council [EP/C523229/1] Funding Source: researchfish
Invisibility and negative refraction are both applications of transformation optics where the material of a device performs a coordinate transformation for electromagnetic fields. The device creates the illusion that light propagates through empty flat space, whereas in physical space, light is bent around a hidden interior or seems to run backward in space or time. All of the previous proposals for invisibility require materials with extreme properties. Here we show that transformation optics of a curved, non- Euclidean space ( such as the surface of a virtual sphere) relax these requirements and can lead to invisibility in a broad band of the spectrum.
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