Transport of Intensity Phase Retrieval in the Presence of Intensity Variations and Unknown Boundary Conditions
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arXiv
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| Main Authors: | , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866911759305015296 |
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| author | Lubk, A. Kyrychenko, R. Wolf, D. Wegner, M. Herzog, M. Winter, M. Zaiets, O. Vir, P. Schultz, J. Felser, C. Büchner, B. |
| author_facet | Lubk, A. Kyrychenko, R. Wolf, D. Wegner, M. Herzog, M. Winter, M. Zaiets, O. Vir, P. Schultz, J. Felser, C. Büchner, B. |
| contents | The so-called Transport of Intensity Equation (TIE) phase retrieval technique is widely applied in light, x-ray and electron optics to reconstruct, e.g., refractive indices, electric and magnetic fields in solids. Here, we present a largely improved TIE reconstruction algorithm, which properly considers intensity variations as well as unknown boundary conditions in a finite difference implementation of the Transport of Intensity partial differential equation. That largely removes reconstruction artifacts encountered in state-of-the-art Poisson solvers of the TIE, and hence significantly increases the applicability of the technique. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2401_03744 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Transport of Intensity Phase Retrieval in the Presence of Intensity Variations and Unknown Boundary Conditions Lubk, A. Kyrychenko, R. Wolf, D. Wegner, M. Herzog, M. Winter, M. Zaiets, O. Vir, P. Schultz, J. Felser, C. Büchner, B. Materials Science The so-called Transport of Intensity Equation (TIE) phase retrieval technique is widely applied in light, x-ray and electron optics to reconstruct, e.g., refractive indices, electric and magnetic fields in solids. Here, we present a largely improved TIE reconstruction algorithm, which properly considers intensity variations as well as unknown boundary conditions in a finite difference implementation of the Transport of Intensity partial differential equation. That largely removes reconstruction artifacts encountered in state-of-the-art Poisson solvers of the TIE, and hence significantly increases the applicability of the technique. |
| title | Transport of Intensity Phase Retrieval in the Presence of Intensity Variations and Unknown Boundary Conditions |
| topic | Materials Science |
| url | https://arxiv.org/abs/2401.03744 |