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Implementation of dispersion-free slow acoustic wave propagation and phase engineering with helical-structured metamaterials
文献类型：期刊论文
| 作者 | Zhu, Xuefeng1,2,3; Li, Kun1; Zhang, Peng4; Zhu, Jie5; Zhang, Jintao1; Tian, Chao6; Liu, Shengchun1,6 |
| 刊名 | nature communications
 |
| 出版日期 | 2016-05-01 |
| 卷号 | 7 |
| ISSN号 | 2041-1723 |
| 产权排序 | 4 |
| 英文摘要 | the ability to slow down wave propagation in materials has attracted significant research interest. a successful solution will give rise to manageable enhanced wave-matter interaction, freewheeling phase engineering and spatial compression of wave signals. the existing methods are typically associated with constructing dispersive materials or structures with local resonators, thus resulting in unavoidable distortion of waveforms. here we show that, with helical-structured acoustic metamaterials, it is now possible to implement dispersion-free sound deceleration. the helical-structured metamaterials present a non-dispersive high effective refractive index that is tunable through adjusting the helicity of structures, while the wavefront revolution plays a dominant role in reducing the group velocity. finally, we numerically and experimentally demonstrate that the helical-structured metamaterials with designed inhomogeneous unit cells can turn a normally incident plane wave into a self-accelerating beam on the prescribed parabolic trajectory. the helical-structured metamaterials will have profound impact to applications in explorations of slow wave physics. |
| WOS标题词 | science & technology |
| 类目[WOS] | multidisciplinary sciences |
| 研究领域[WOS] | science & technology - other topics |
| 关键词[WOS] | photonic crystals ; light ; enhancement ; coiling ; storage ; guides ; space ; chip |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000376206500001 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/28135]  |
| 专题 | 西安光学精密机械研究所_瞬态光学技术国家重点实验室 |
| 作者单位 | 1.Heilongjiang Univ, Coll Phys Sci & Technol, Harbin 150080, Peoples R China 2.Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China 3.Huazhong Univ Sci & Technol, Innovat Inst, Wuhan 430074, Peoples R China 4.Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China 5.Hong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China 6.Univ Michigan, Dept Biomed Engn, Ann Arbor, MI 48109 USA |
| 推荐引用方式 GB/T 7714 | Zhu, Xuefeng,Li, Kun,Zhang, Peng,et al. Implementation of dispersion-free slow acoustic wave propagation and phase engineering with helical-structured metamaterials[J]. nature communications,2016,7. |
| APA | Zhu, Xuefeng.,Li, Kun.,Zhang, Peng.,Zhu, Jie.,Zhang, Jintao.,...&Liu, Shengchun.(2016).Implementation of dispersion-free slow acoustic wave propagation and phase engineering with helical-structured metamaterials.nature communications,7. |
| MLA | Zhu, Xuefeng,et al."Implementation of dispersion-free slow acoustic wave propagation and phase engineering with helical-structured metamaterials".nature communications 7(2016). |
入库方式： OAI收割
来源：西安光学精密机械研究所
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