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A hybrid invisibility cloak based on integration of transparent metasurfaces and zero-index materials
文献类型：期刊论文
| 作者 | Chu, H. C.; Li, Q.; Liu, B. B.; Luo, J.; Sun, S. L.; Hang, Z. H.; Zhou, L. ; Lai, Y.
|
| 刊名 | Light-Science & Applications
 |
| 出版日期 | 2018 |
| 卷号 | 7页码:8 |
| 关键词 | refractive-index metamaterials phase polarization realization light wavelengths resolution Optics |
| ISSN号 | 2047-7538 |
| DOI | 10.1038/s41377-018-0052-7 |
| 英文摘要 | The invisibility cloak, a long-standing fantastic dream for humans, has become more tangible with the development of metamaterials. Recently, metasurface-based invisibility cloaks have been proposed and realized with significantly reduced thickness and complexity of the cloaking shell. However, the previous scheme is based on reflection-type metasurfaces and is thus limited to reflection geometry. In this work, by integrating the wavefront tailoring functionality of transparent metasurfaces and the wave tunneling functionality of zero-index materials, we have realized a unique type of hybrid invisibility cloak that functions in transmission geometry. The principle is general and applicable to arbitrary shapes. For experimental demonstration, we constructed a rhombic double-layer cloaking shell composed of a highly transparent metasurface and a double-zero medium consisting of dielectric photonic crystals with Dirac cone dispersions. The cloaking effect is verified by both full-wave simulations and microwave experimental results. The principle also reveals exciting possibilities for realizing skin-thick ultrathin cloaking shells in transmission geometry, which can eliminate the need for spatially varying extreme parameters. Our work paves a path for novel optical and electromagnetic devices based on the integration of metasurfaces and metamaterials. |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/60869]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | Chu, H. C.,Li, Q.,Liu, B. B.,et al. A hybrid invisibility cloak based on integration of transparent metasurfaces and zero-index materials[J]. Light-Science & Applications,2018,7:8. |
| APA | Chu, H. C..,Li, Q..,Liu, B. B..,Luo, J..,Sun, S. L..,...&Lai, Y..(2018).A hybrid invisibility cloak based on integration of transparent metasurfaces and zero-index materials.Light-Science & Applications,7,8. |
| MLA | Chu, H. C.,et al."A hybrid invisibility cloak based on integration of transparent metasurfaces and zero-index materials".Light-Science & Applications 7(2018):8. |
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