A fundamental study on imaging with an off-axis Fresnel zone plate.
A fundamental study on imaging with an off-axis Fresnel zone plate.
复制标题
离轴菲涅尔波带片成像的基础研究。
DOI：
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发表时间：
1978
期刊：
影响因子：
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通讯作者：
K. Kojima
中科院分区：
文献类型：
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作者：
G. Itaya;K. Kojima
离轴菲涅耳波带片通过使用半色调屏幕引入空间载波频率，可以用作大面积编码孔径，用于对不相干辐射源进行成像。本文通过光学模拟从空间分辨率的角度讨论了离轴菲涅尔波带片作为孔径的结构和成像方法，并附上了一些物体、全息图和重建图像的例子。然后得出结论，具有 D（直径）= 5.8 cm 和 nuc（空间中心频率）= 23 l/cm 的离轴菲涅尔波带片足以重建图像。
An off-axis Fresnel zone plate, through use of a halftone screen to introduce a spatial carrier frequency, can be used as a large-area, coded aperture for imaging incoherent radiation sources. This paper discusses the structure of off-axis Fresnel zone plate as an aperture and the mentods of imaging from the viewpoint of the spatial resolution by optical simulation, appending some examples of objects, holograms and reconstructed images. It is then concluded that the off-axis Fresnel zone plate having D (diameter) = 5.8 cm and nuc (spatial center frequency) = 23 l/cm is sufficient for the reconstructed images.