Beyond memory-effect matrix-based imaging in scattering media by acousto-optic gating
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866910449711185920 |
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| author | Sunray, Elad Weinberg, Gil Rosenfeld, Moriya Katz, Ori |
| author_facet | Sunray, Elad Weinberg, Gil Rosenfeld, Moriya Katz, Ori |
| contents | Imaging inside scattering media at optical resolution is a longstanding challenge affecting multiple fields, from bio-medicine to astronomy. In recent years, several groundbreaking techniques for imaging inside scattering media, in particular scattering-matrix based approaches, have shown great promise, but usually suffer from a restricted field of view (FOV) due to their reliance on the optical 'memory-effect'. Here, we demonstrate that by combining acousto-optic spatial-gating with state-of-the-art matrix-based imaging techniques, diffraction-limited imaging beyond the optical memory-effect can be achieved in a robust fashion. Specifically, we show that this can be achieved by computational processing of scattered light fields captured under scanned acousto-optic modulation. The approach can be directly utilized whenever the ultrasound focus size is of the order of the memory-effect range, independently of the scattering angle. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_10118 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Beyond memory-effect matrix-based imaging in scattering media by acousto-optic gating Sunray, Elad Weinberg, Gil Rosenfeld, Moriya Katz, Ori Optics Applied Physics Imaging inside scattering media at optical resolution is a longstanding challenge affecting multiple fields, from bio-medicine to astronomy. In recent years, several groundbreaking techniques for imaging inside scattering media, in particular scattering-matrix based approaches, have shown great promise, but usually suffer from a restricted field of view (FOV) due to their reliance on the optical 'memory-effect'. Here, we demonstrate that by combining acousto-optic spatial-gating with state-of-the-art matrix-based imaging techniques, diffraction-limited imaging beyond the optical memory-effect can be achieved in a robust fashion. Specifically, we show that this can be achieved by computational processing of scattered light fields captured under scanned acousto-optic modulation. The approach can be directly utilized whenever the ultrasound focus size is of the order of the memory-effect range, independently of the scattering angle. |
| title | Beyond memory-effect matrix-based imaging in scattering media by acousto-optic gating |
| topic | Optics Applied Physics |
| url | https://arxiv.org/abs/2405.10118 |