Standing wave acoustic levitation performed using retroreflection metasurface

被引：0
作者：
Ruan Y. [1 ]
Liang X. [1 ]
机构：
[1] Ocean College, Zhejiang University, Zhoushan
来源：
| 1600年 / Chinese Academy of Sciences卷 / 50期
关键词：
Acoustic levitation; Metasurface; Retroreflection; Standing wave;
D O I：
10.1360/SST-2019-0397
中图分类号：
学科分类号：
摘要：
Acoustic levitation is a significant non-contact technology for suspending particles in air. This technology can suspend particles and control their motion based on the acoustic radiation force. The particle motion is closely related to the distribution of a sound field. Owing to the development of an acoustic metasurface, the sound field can be easily manipulated such that acoustic levitation can be utilized in different conditions. Based on the acoustic metasurface retroreflector theory and force on objects in the sound field, we simulate acoustic levitation with different incident angles of acoustic waves. We study the retroreflective sound field generated by a metasurface and the motion of the particles in the sound field. Our results show that the retroreflection metasurface forms a standing wave and realizes particle suspension at oblique incident angles. The application of an acoustic metasurface to acoustic levitation allows particle manipulation to be used in special conditions, which will have benefits in medical research, chemical analysis, and space technology in the future. © 2020, Science Press. All right reserved.
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页码：1226 / 1234
页数：8
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