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Title: Low-coherence snapshot phase-shifting diffraction phase microscope
We proposed a Wollaston-prism-based snapshot phase-shifting diffraction phase microscope (WP-SPDPM) for low-coherence snapshot quantitative phase imaging and videography. Wollaston prism separates two orthogonally linearly polarized beams with high degrees of polarization at a sufficiently small separation angle; one of the beams passing through a pinhole serves as the reference beam. Four phase-shifted interferograms are simultaneously acquired with a polarization camera to accurately retrieve a high spatial resolution phase map. The system is nearly common-path in configuration and can achieve a large slope range and high accuracy. In addition to the ability to resist environmental noise, the WP-SPDPM is suitable for phase measurement using low-coherence light. The accuracy and large measurable slope range of the proposed system is validated and compared experimentally with a commercial profilometer. We believe WP-SPDPM is a powerful tool for the accurate and robust quantitative phase measurement and has a significant potential of the real-time phase imaging.  more » « less
Award ID(s):
2053754
PAR ID:
10495013
Author(s) / Creator(s):
; ; ; ;
Publisher / Repository:
Optics and Lasers in Engineering
Date Published:
Journal Name:
Optics and Lasers in Engineering
Volume:
167
Issue:
C
ISSN:
0143-8166
Page Range / eLocation ID:
107618
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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