菲涅耳衍射
衍射
光学
傅里叶变换
菲涅耳积分
带宽(计算)
菲涅耳数
计算机科学
计算
菲涅耳区
傅里叶光学
物理
算法
电信
量子力学
作者
Wenhui Zhang,Hao Zhang,Guofan Jin
出处
期刊:Journal of Optics
[IOP Publishing]
日期:2021-02-18
卷期号:23 (3): 035604-035604
被引量:6
标识
DOI:10.1088/2040-8986/abdf68
摘要
Abstract In physical optics, Fresnel diffraction matters. The single Fourier transform method has been widely used in Fresnel diffraction calculation and can perform the direct computation of the output field with high efficiency. Based on a phase-space analysis, we find that the conventional single Fourier transform method cannot correctly deal with the full bandwidth of the input field. Aliasing occurs with high-frequency components because the bandwidth transfer capacity of the conventional method is insufficient, which greatly deteriorates the calculation accuracy. To address this serious problem, we propose a single Fourier transform-based full-bandwidth Fresnel diffraction calculation method. By rearrangement of the sampling resources, all the frequency components can be correctly transferred for accurate, efficient, and flexible Fresnel diffraction calculation.
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