期刊
MRS BULLETIN
卷 33, 期 10, 页码 915-920出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1557/mrs2008.199
关键词
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资金
- Defense Advanced Research Projects Agency [HR0011-05-3-0002]
- Office of Naval Research [N00173-07-G013]
- National Science Foundation [CMMI-0709023]
Artificially engineered metamaterials have emerged with properties and functionalities previously unattainable in natural materials. The scientific breakthroughs made in this new class of electromagnetic materials are closely linked with progress in developing physics-driven design and novel parallel fabrication methods. For example, a smooth superlens has been demonstrated with 30-nm imaging resolution, or 1/12 of the corresponding wavelength, far below the diffraction limit. Similarly a photoswitchable optical negative-index material has been printed, showing a remarkable tuning range of refractive index in the communication wavelength. New frontiers are being explored as intrinsic limitations challenge the scaling of microwave metamaterial designs to optical frequencies. These novel metamaterials promise an entire new generation of passive and active optical elements, such as paper-thin superlenses and modulators.
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