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Local-Nonlinearity-Enabled Deep Subdiffraction Control of Acoustic Waves.
Zhong, Jiaxin; Hu, Chengbo; Wang, Kangkang; Ji, Jun; Zhuang, Tao; Zou, Haishan; Lu, Jing; Heo, Hyeonu; Liang, Bin; Jing, Yun; Cheng, Jian-Chun.
Afiliación
  • Zhong J; Key Laboratory of Modern Acoustics and Institute of Acoustics, Nanjing University, Nanjing 210093, China.
  • Hu C; Graduate Program in Acoustics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.
  • Wang K; Key Laboratory of Modern Acoustics and Institute of Acoustics, Nanjing University, Nanjing 210093, China.
  • Ji J; Key Laboratory of Modern Acoustics and Institute of Acoustics, Nanjing University, Nanjing 210093, China.
  • Zhuang T; Graduate Program in Acoustics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.
  • Zou H; Key Laboratory of Modern Acoustics and Institute of Acoustics, Nanjing University, Nanjing 210093, China.
  • Lu J; NJU-Horizon Intelligent Audio Lab, Horizon Robotics, Beijing 100094, China.
  • Heo H; Key Laboratory of Modern Acoustics and Institute of Acoustics, Nanjing University, Nanjing 210093, China.
  • Liang B; Key Laboratory of Modern Acoustics and Institute of Acoustics, Nanjing University, Nanjing 210093, China.
  • Jing Y; NJU-Horizon Intelligent Audio Lab, Horizon Robotics, Beijing 100094, China.
  • Cheng JC; Graduate Program in Acoustics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.
Phys Rev Lett ; 131(23): 234001, 2023 Dec 08.
Article en En | MEDLINE | ID: mdl-38134795
ABSTRACT
Diffraction sets a natural limit for the spatial resolution of acoustic wave fields, hindering the generation and recording of object details and manipulation of sound at subwavelength scales. We propose to overcome this physical limit by utilizing nonlinear acoustics. Our findings indicate that, contrary to the commonly utilized cumulative nonlinear effect, it is in fact the local nonlinear effect that is crucial in achieving subdiffraction control of acoustic waves. We theoretically and experimentally demonstrate a deep subwavelength spatial resolution up to λ/38 in the far field at a distance 4.4 times the Rayleigh distance. This Letter represents a new avenue towards deep subdiffraction control of sound, and may have far-reaching impacts on various applications such as acoustic holograms, imaging, communication, and sound zone control.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos