| 田野,左淑毓,程营,刘晓峻.基于相位调控的超高透射声学超表面及其应用*[J].,2018,37(5):691-700 |
| 基于相位调控的超高透射声学超表面及其应用* |
| Phase-controlled acoustic metasurface with high efficiency and its applications |
| 投稿时间：2018-05-30 修订日期：2018-09-05 |
| 中文摘要: |
| 声学超表面可以灵活有效地对声波进行调控，实现多种新颖的现象和功能，在诸多声波调控领域有潜在的应用前景。该文引入了一种镀膜型迷宫结构单元，可以提供全范围(0~2π)的突变相位，具有高效的透射率(~100%)和较好的鲁棒性。基于相位调控，可利用镀膜型迷宫结构单元构建出超高透射超表面，实现异常声折射、声聚焦、声束沿任意凸轨迹弯曲传播以及声成像等应用。 |
| 英文摘要: |
| Acoustic metasurfaces can control sound waves flexibly and effectively, and realize a variety of novel phenomena and functions, which makes it show a great application prospect in many acoustic wave control fields. In the paper, authors introduce a coated labyrinthine structure (CLS), which can provide a full phase-controlled range (0 ~ 2π) and a high transmittance (~100%), and features a good robustness. Based on the CLS units, authors construct the phase-controlled acoustic metasurfaces with high efficiency. Based on the constructed metasurfaces, authors realize the applications of phase control such as acoustic anomalous refraction, acoustic focusing, acoustic beam bending along any convex trajectory, and acoustic imaging. |
| DOI：10.11684/j.issn.1000-310X.2018.05.013 |
| 中文关键词: 超表面，声波调控，相位调控，迷宫结构，高透射 |
| 英文关键词: Metasurface, Acoustic control, Phase control, Labyrinthine structure, High transmission |
| 基金项目:国家自然科学基金项目 (11674172, 11574148, 11474162) |
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