首页|Orbital angular momentum conversion of acoustic vortex beams via planar lattice coupling

Orbital angular momentum conversion of acoustic vortex beams via planar lattice coupling

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
Orbital angular momentum(OAM)conversion is critical in understanding interactions between a structural sound field and a planar lattice.Herein,we explore the evolution of a monochromatic acoustic vortex beam(AVB)that is scattered by a phononic crystal(PnC)or a correlated random lattice.The phenomenon is ascribed to the enhanced orbit-orbit angular momentum coupling induced by the band structure.By modifying the coupling condition,accurate and continuous micro-manipulation of AVBs can be achieved,including the transverse/lateral gravity shift,the dynamics of the phase singularities,and the spatial distribution of acoustic pressure,etc.This research provides insight to the inhomogeneous coupling of AVBs with both propagating Bloch waves and localized Anderson modes,and may facilitate development of novel OAM-based acoustic devices for active sound field manipulation.

acoustic vortex beamphononic crystalAnderson localizationImbert-Fedorov effect

韩庆邦、刘志鹏、殷澄、吴思梦、罗寅龙、杨子鑫、庞修洋、王溢秋、阚雪芬、张雨秋、俞强、吴坚

展开 >

College of Information Science and Engineering,Hohai University,Changzhou 213200,China

College of Advanced Interdisciplinary Studies/Nanhu Laser Laboratory,National University of Defense Technology,Changsha 410073,China

School of Transportation Engineering,Jiangsu Shipping College,Nantong 226010,China

College of Advanced Interdisciplinary Studies,Nanhu Laser Laboratory,National University of Defense Technology,Changsha 410073,China

i-Lab,Suzhou Institute of Nano-Tech and Nano-Bionics,Chinese Academy of Sciences,Suzhou 215123,China

展开 >

National Natural science foundation of ChinaFundamental Research Funds for the Central UniversitiesBasic Science(Natural Science)Research Project for the Universities of Jiangsu ProvinceNatural Science Foundation of Nantong

12174085B22020201823KJD140002JC2023081

2024

10.1088/1674-1056/ad57ad

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(9)