Complex wavefront sensing based on coherent diffraction imaging using vortex modulation

Complex wavefront sensing based on coherent diffraction imaging using vortex modulation

Abstract Phase retrieval seeks to reconstruct the phase from the measured intensity, which is an ill-posed problem. A phase retrieval problem can be solved with physical constraints by modulating the investigated complex wavefront. Orbital angular momentum has been recently employed as a type of rel...

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Autores principales: Rujia Li, Liangcai Cao
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2021
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Science
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Acceso en línea:https://doaj.org/article/a5f57bee04da4cc8a3338e94a0321a84
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spelling oai:doaj.org-article:a5f57bee04da4cc8a3338e94a0321a842021-12-02T14:53:42ZComplex wavefront sensing based on coherent diffraction imaging using vortex modulation10.1038/s41598-021-88523-x2045-2322https://doaj.org/article/a5f57bee04da4cc8a3338e94a0321a842021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-88523-xhttps://doaj.org/toc/2045-2322Abstract Phase retrieval seeks to reconstruct the phase from the measured intensity, which is an ill-posed problem. A phase retrieval problem can be solved with physical constraints by modulating the investigated complex wavefront. Orbital angular momentum has been recently employed as a type of reliable modulation. The topological charge l is robust during propagation when there is atmospheric turbulence. In this work, topological modulation is used to solve the phase retrieval problem. Topological modulation offers an effective dynamic range of intensity constraints for reconstruction. The maximum intensity value of the spectrum is reduced by a factor of 173 under topological modulation when l is 50. The phase is iteratively reconstructed without a priori knowledge. The stagnation problem during the iteration can be avoided using multiple topological modulations.Rujia LiLiangcai CaoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Rujia Li
Liangcai Cao
Complex wavefront sensing based on coherent diffraction imaging using vortex modulation
description Abstract Phase retrieval seeks to reconstruct the phase from the measured intensity, which is an ill-posed problem. A phase retrieval problem can be solved with physical constraints by modulating the investigated complex wavefront. Orbital angular momentum has been recently employed as a type of reliable modulation. The topological charge l is robust during propagation when there is atmospheric turbulence. In this work, topological modulation is used to solve the phase retrieval problem. Topological modulation offers an effective dynamic range of intensity constraints for reconstruction. The maximum intensity value of the spectrum is reduced by a factor of 173 under topological modulation when l is 50. The phase is iteratively reconstructed without a priori knowledge. The stagnation problem during the iteration can be avoided using multiple topological modulations.
format article
author Rujia Li
Liangcai Cao
author_facet Rujia Li
Liangcai Cao
author_sort Rujia Li
title Complex wavefront sensing based on coherent diffraction imaging using vortex modulation
title_short Complex wavefront sensing based on coherent diffraction imaging using vortex modulation
title_full Complex wavefront sensing based on coherent diffraction imaging using vortex modulation
title_fullStr Complex wavefront sensing based on coherent diffraction imaging using vortex modulation
title_full_unstemmed Complex wavefront sensing based on coherent diffraction imaging using vortex modulation
title_sort complex wavefront sensing based on coherent diffraction imaging using vortex modulation
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/a5f57bee04da4cc8a3338e94a0321a84
work_keys_str_mv AT rujiali complexwavefrontsensingbasedoncoherentdiffractionimagingusingvortexmodulation
AT liangcaicao complexwavefrontsensingbasedoncoherentdiffractionimagingusingvortexmodulation
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