Elastic wave imaging with Maxwell's fish-eye lens
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arXiv
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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866911772536995840 |
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| author | Zhao, Liuxian Li, Chunlin Zhuang, Xuxu Guo, Hao Liu, Yongquan |
| author_facet | Zhao, Liuxian Li, Chunlin Zhuang, Xuxu Guo, Hao Liu, Yongquan |
| contents | In this paper, a modified Maxwell's fish-eye lens is proposed in order to achieve super-resolution imaging. This lens possesses elevated refractive index profile compared with the traditional Maxwell's fish-eye lens. The refractive index profile is achieved with variable thickness configuration defined in a sheet plate structure, to realise desired changes in refractive indices. The wave propagation behaviours and the full width at half maximum (FWHM) are obtained from numerical simulations and experimental studies at the focal region of the lens. Super-resolution imaging is observed in a broadband frequency scope, with the FWHM around 0.2λ from 5 to 10 kHz. This work provides a straightforward and flexible approach to the engineering of the MFEL imaging characteristics and energy distributions for related applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_04285 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Elastic wave imaging with Maxwell's fish-eye lens Zhao, Liuxian Li, Chunlin Zhuang, Xuxu Guo, Hao Liu, Yongquan Classical Physics Applied Physics 74Bxx A.0 In this paper, a modified Maxwell's fish-eye lens is proposed in order to achieve super-resolution imaging. This lens possesses elevated refractive index profile compared with the traditional Maxwell's fish-eye lens. The refractive index profile is achieved with variable thickness configuration defined in a sheet plate structure, to realise desired changes in refractive indices. The wave propagation behaviours and the full width at half maximum (FWHM) are obtained from numerical simulations and experimental studies at the focal region of the lens. Super-resolution imaging is observed in a broadband frequency scope, with the FWHM around 0.2λ from 5 to 10 kHz. This work provides a straightforward and flexible approach to the engineering of the MFEL imaging characteristics and energy distributions for related applications. |
| title | Elastic wave imaging with Maxwell's fish-eye lens |
| topic | Classical Physics Applied Physics 74Bxx A.0 |
| url | https://arxiv.org/abs/2402.04285 |