Spatial sub-Rayleigh imaging via structured speckle illumination
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arXiv
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866916339201867776 |
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| author | Li, Liming |
| author_facet | Li, Liming |
| contents | In a lens-assisted imaging scheme with speckle illumination, the spatial resolution can surpass the Rayleigh resolution limit by a factor of $\sqrt{2}$ with second-order auto-correlation of light intensity. In this work, integrated with the nonlinear structured illumination after the speckle sinusoidally modulated, the second-order auto-correlation imaging can surpass the Rayleigh resolution limit by a factor of $2+\sqrt{2}$. In theory, a higher spatial resolution with the surpassing factor $N+\sqrt{N}$ is available by the $N$-order auto-correlation measurement. Our imaging scheme combined two super-resolution technologies not only enhances the spatial resolution of the lens-assisted imaging, but also promotes the practicality of the intensity correlation imaging. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_20460 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Spatial sub-Rayleigh imaging via structured speckle illumination Li, Liming Optics In a lens-assisted imaging scheme with speckle illumination, the spatial resolution can surpass the Rayleigh resolution limit by a factor of $\sqrt{2}$ with second-order auto-correlation of light intensity. In this work, integrated with the nonlinear structured illumination after the speckle sinusoidally modulated, the second-order auto-correlation imaging can surpass the Rayleigh resolution limit by a factor of $2+\sqrt{2}$. In theory, a higher spatial resolution with the surpassing factor $N+\sqrt{N}$ is available by the $N$-order auto-correlation measurement. Our imaging scheme combined two super-resolution technologies not only enhances the spatial resolution of the lens-assisted imaging, but also promotes the practicality of the intensity correlation imaging. |
| title | Spatial sub-Rayleigh imaging via structured speckle illumination |
| topic | Optics |
| url | https://arxiv.org/abs/2407.20460 |