Abstract

We propose a compact and external off-axis interferometric module that can achieve interference with low spatial coherence illumination over the entire field of view. The interferometer is easy to align and stable and can be connected to the output of an existing microscope illuminated with a low spatial coherence light source, thus allowing quantitative phase imaging with a low degree of spatial noise. We demonstrate the imaging and the interference properties of the proposed interferometric module and use it for quantitative phase imaging of reflective samples.

© 2017 Optical Society of America

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Supplementary Material (1)

NameDescription
» Visualization 1: MP4 (7532 KB)      Interference fringes obtained with the proposed compact module when imaging a reflective test target, without using a pinhole in the reference arm (interfering two copies of the imaged object). To allow better visualization, the video was purposely recorded out of the image plane.

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