孔径光阑在傅里叶叠层成像系统中的应用探讨DISCUSSION ON THE APPLICATION OF THE APERTURE IN FOURIER PTYCHOGRAPHY
赵洁,王大勇,王云新
摘要(Abstract):
孔径光阑是应用光学和物理光学中的一个重要知识点,决定了光学系统分辨率、成像亮度等性能。本文针对当前计算成像前沿的傅里叶叠层高分辨率成像系统,探讨了孔径光阑在显微系统以及远距离系统中的应用。首先,基于单薄透镜成像模型,给出了光瞳函数对应的物方和像方相干传递函数;其次,分析了在两类傅里叶叠层成像系统中孔径光阑的实际设置;最后,通过数值仿真和光学实验,验证了分别从物方和像方数据出发进行高分辨率图像重建的等效性。上述探讨加深了对孔径光阑概念及其在实际成像系统中应用的理解。
关键词(KeyWords): 孔径光阑;傅里叶叠层成像;传递函数;相干成像;数值孔径
基金项目(Foundation): 北京工业大学“课程思政”示范课程培育项目(光学,KC2021SZ022);北京工业大学教育教学研究课题(ER2022KCB14)
作者(Author): 赵洁,王大勇,王云新
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