Anisotropy in Fourier space optical memory effect correlations
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arXiv
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866913089393262592 |
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| author | Byrnes, Niall Foreman, Matthew R. |
| author_facet | Byrnes, Niall Foreman, Matthew R. |
| contents | We investigate anisotropy in Fourier-domain speckle correlations associated with the optical memory effect in disordered scattering media. Within a single scattering framework, we show that while the conventional memory effect constrains transverse wavevector shifts, the correlation strength also depends non-trivially on differences in the axial wavevector components. Our theory is supported by numerical simulations of a three-dimensional, single scattering medium, which show excellent agreement with theory. We extend the analysis to pseudo-correlations, demonstrating that analogous anisotropic behavior arises in the conjugate memory effect. Our results highlight the often neglected role of axial disorder in scattered field correlations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_03469 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Anisotropy in Fourier space optical memory effect correlations Byrnes, Niall Foreman, Matthew R. Optics Mathematical Physics We investigate anisotropy in Fourier-domain speckle correlations associated with the optical memory effect in disordered scattering media. Within a single scattering framework, we show that while the conventional memory effect constrains transverse wavevector shifts, the correlation strength also depends non-trivially on differences in the axial wavevector components. Our theory is supported by numerical simulations of a three-dimensional, single scattering medium, which show excellent agreement with theory. We extend the analysis to pseudo-correlations, demonstrating that analogous anisotropic behavior arises in the conjugate memory effect. Our results highlight the often neglected role of axial disorder in scattered field correlations. |
| title | Anisotropy in Fourier space optical memory effect correlations |
| topic | Optics Mathematical Physics |
| url | https://arxiv.org/abs/2605.03469 |