存在强度变化和未知边界条件时的强度相位检索传输

IF 3.1 3区物理与天体物理 Q2 Engineering

Optik Pub Date : 2024-11-12 DOI:10.1016/j.ijleo.2024.172109

A. Lubk , R. Kyrychenko , D. Wolf , M. Wegner , M. Herzog , M. Winter , O. Zaiets , P. Vir , J. Schultz , C. Felser , B. Büchner

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引用次数: 0

摘要

所谓的强度传输方程（TIE）相位检索技术被广泛应用于光、X 射线和电子光学领域，用于重建固体中的折射率、电场和磁场等。在这里，我们提出了一种经过很大程度改进的 TIE 重建算法，它在强度传输偏微分方程的有限差分实现中适当考虑了强度变化和未知边界条件。这在很大程度上消除了最先进的 TIE 泊松求解器中遇到的重建伪影，从而大大提高了该技术的适用性。

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Transport of intensity phase retrieval in the presence of intensity variations and unknown boundary conditions

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.

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来源期刊

Optik 物理-光学

CiteScore

6.90

自引率

12.90%

发文量

1471

审稿时长

46 days

期刊介绍： Optik publishes articles on all subjects related to light and electron optics and offers a survey on the state of research and technical development within the following fields: Optics: -Optics design, geometrical and beam optics, wave optics- Optical and micro-optical components, diffractive optics, devices and systems- Photoelectric and optoelectronic devices- Optical properties of materials, nonlinear optics, wave propagation and transmission in homogeneous and inhomogeneous materials- Information optics, image formation and processing, holographic techniques, microscopes and spectrometer techniques, and image analysis- Optical testing and measuring techniques- Optical communication and computing- Physiological optics- As well as other related topics.