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arXiv 1309.7516physics.optics
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傅里叶重叠关联显微术的定量相位成像

Quantitative phase imaging via Fourier ptychographic microscopy

Xiaoze Ou, Roarke Horstmeyer, Changhuei Yang, Guoan Zheng

摘要:

傅立叶重叠关联显微镜(FPM)是最近发展起来的一种成像模式,它使用角度变化的照明来扩展系统性能,超出其光学元件所定义的限制。FPM技术采用了一种新的相位恢复过程,以实现分辨率增强和复图像恢复。在这封信中,我们比较了FPM数据的理论预测和相移数字全息测量,以表明其获得的相位图是定量的和无伪影。我们还探索了重建的FPM相位图像提供的可实现的空间分辨率和光学厚度分辨率之间的关系。最后,我们展示了增强的可视化和收集,否则无法观察到的样品信息,使用FPM定量相。

英文摘要:

Fourier ptychographic microscopy (FPM) is a recently developed imaging modality that uses angularly varying illumination to extend a system performance beyond the limit defined by its optical elements. The FPM technique applies a novel phase retrieval procedure to achieve both resolution enhancement and complex image recovery. In this letter, we compare FPM data to both theoretical prediction and phase-shifting digital holography measurement to show that its acquired phase maps are quantitative and artifact-free. We additionally explore the relationship between the achievable spatial and optical thickness resolution offered by a reconstructed FPM phase image. We conclude by demonstrating both enhanced visualization and the collection of otherwise unobservable sample information using FPM quantitative phase.

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