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- Publisher Website: 10.1038/s41467-018-08221-7
- Scopus: eid_2-s2.0-85060064680
- PMID: 30643126
- WOS: WOS:000455595400027
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Article: Far-field acoustic subwavelength imaging and edge detection based on spatial filtering and wave vector conversion
Title | Far-field acoustic subwavelength imaging and edge detection based on spatial filtering and wave vector conversion |
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Authors | |
Issue Date | 2019 |
Citation | Nature Communications, 2019, v. 10, n. 1, article no. 204 How to Cite? |
Abstract | The resolution of acoustic imaging suffers from diffraction limit due to the loss of evanescent field that carries subwavelength information. Most of the current methods for overcoming the diffraction limit in acoustics still operate in the near-field of the object. Here we demonstrate the design and experimental realization of an acoustic far-field subwavelength imaging system. Our system is based on wave vector filtering and conversion with a transmitter at the near-field and a spatially symmetrical receiver at the far-field. By tuning geometric parameters of the transmitting/receiving pair, different spatial frequency bands can be separated and projected to the far-field. Furthermore, far-field imaging and edge detection of subwavelength objects are experimentally demonstrated. The proposed system brings new possibilities for far-field subwavelength wave manipulation, which can be further applied to medical imaging, nondestructive testing, and acoustic communication. |
Persistent Identifier | http://hdl.handle.net/10722/318753 |
PubMed Central ID | |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Ma, Chu | - |
dc.contributor.author | Kim, Seok | - |
dc.contributor.author | Fang, Nicholas X. | - |
dc.date.accessioned | 2022-10-11T12:24:29Z | - |
dc.date.available | 2022-10-11T12:24:29Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Nature Communications, 2019, v. 10, n. 1, article no. 204 | - |
dc.identifier.uri | http://hdl.handle.net/10722/318753 | - |
dc.description.abstract | The resolution of acoustic imaging suffers from diffraction limit due to the loss of evanescent field that carries subwavelength information. Most of the current methods for overcoming the diffraction limit in acoustics still operate in the near-field of the object. Here we demonstrate the design and experimental realization of an acoustic far-field subwavelength imaging system. Our system is based on wave vector filtering and conversion with a transmitter at the near-field and a spatially symmetrical receiver at the far-field. By tuning geometric parameters of the transmitting/receiving pair, different spatial frequency bands can be separated and projected to the far-field. Furthermore, far-field imaging and edge detection of subwavelength objects are experimentally demonstrated. The proposed system brings new possibilities for far-field subwavelength wave manipulation, which can be further applied to medical imaging, nondestructive testing, and acoustic communication. | - |
dc.language | eng | - |
dc.relation.ispartof | Nature Communications | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.title | Far-field acoustic subwavelength imaging and edge detection based on spatial filtering and wave vector conversion | - |
dc.type | Article | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1038/s41467-018-08221-7 | - |
dc.identifier.pmid | 30643126 | - |
dc.identifier.pmcid | PMC6331623 | - |
dc.identifier.scopus | eid_2-s2.0-85060064680 | - |
dc.identifier.volume | 10 | - |
dc.identifier.issue | 1 | - |
dc.identifier.spage | article no. 204 | - |
dc.identifier.epage | article no. 204 | - |
dc.identifier.eissn | 2041-1723 | - |
dc.identifier.isi | WOS:000455595400027 | - |