
Quantitative phase imaging via Fourier ptychographic microscopy.
Fourier ptychographic microscopy (FPM) is a recently developed imaging modality that uses angularly varying illumination to extend a system's performance beyond the limit defined by its optical components. The FPM technique applies a novel phase-retrieval procedure to achieve resolution enhancement and complex image recovery. In this Letter, we compare FPM data to 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 enhanced visualization and the collection of otherwise unobservable sample information using FPM's quantitative phase.
Duke Scholars
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Related Subject Headings
- Signal Processing, Computer-Assisted
- Optics
- Microscopy, Phase-Contrast
- Image Enhancement
- Fourier Analysis
- Equipment Failure Analysis
- Equipment Design
- 5102 Atomic, molecular and optical physics
- 4009 Electronics, sensors and digital hardware
- 4006 Communications engineering
Citation

Published In
DOI
EISSN
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Signal Processing, Computer-Assisted
- Optics
- Microscopy, Phase-Contrast
- Image Enhancement
- Fourier Analysis
- Equipment Failure Analysis
- Equipment Design
- 5102 Atomic, molecular and optical physics
- 4009 Electronics, sensors and digital hardware
- 4006 Communications engineering