利用无矩阵有限差分光束传播法模拟旋转对称光场中区板聚焦 X 射线的过程

IF 2.6 4区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Microelectronic Engineering Pub Date : 2024-10-19 DOI:10.1016/j.mee.2024.112278

Hao Quan, Xujie Tong, Qingxin Wu, Qiucheng Chen, Yifang Chen

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引用次数: 0

摘要

我们介绍了一种基于 Crank-Nicholson 方案和递推方案的有限差分法，用于高效计算模拟 X 射线在区块板上的传播。通过引入边界条件和中心条件以及避免大型矩阵运算，该方法实现了相当快的速度、较少的内存占用和较低的背景噪声。该方法适用于任意形状的折射率剖面，可用于协助优化 X 射线区板和了解聚焦机制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Simulations of X-ray focusing by zone plates in rotationally symmetric optical field utilizing the matrix-free Finite Difference Beam Propagation Method

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Simulations of X-ray focusing by zone plates in rotationally symmetric optical field utilizing the matrix-free Finite Difference Beam Propagation Method

We present the use of a finite difference method based on Crank-Nicholson scheme and recurrence scheme for computationally efficient simulation of the X-ray propagation through a zone plate. By introducing boundary and central conditions and by avoiding large matrix operations, the method achieves considerable speed, little memory occupation and low background noise. Accommodating refractive index profiles of arbitrary shape, it can be applied to assist optimizing X-ray zone plates and understanding focusing mechanism.

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来源期刊

Microelectronic Engineering 工程技术-工程：电子与电气

CiteScore

5.30

自引率

4.30%

发文量

131

审稿时长

29 days

期刊介绍： Microelectronic Engineering is the premier nanoprocessing, and nanotechnology journal focusing on fabrication of electronic, photonic, bioelectronic, electromechanic and fluidic devices and systems, and their applications in the broad areas of electronics, photonics, energy, life sciences, and environment. It covers also the expanding interdisciplinary field of "more than Moore" and "beyond Moore" integrated nanoelectronics / photonics and micro-/nano-/bio-systems. Through its unique mixture of peer-reviewed articles, reviews, accelerated publications, short and Technical notes, and the latest research news on key developments, Microelectronic Engineering provides comprehensive coverage of this exciting, interdisciplinary and dynamic new field for researchers in academia and professionals in industry.