Full-field quantitative phase and polarisation-resolved imaging through an optical fibre bundle.
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Authors
Sawyer, Travis
Macfaden, Alexander J
Publication Date
2019-08Journal Title
Optics express
ISSN
1094-4087
Publisher
Optical Society of America (OSA)
Volume
27
Issue
17
Pages
23929-23947
Language
eng
Type
Article
This Version
AM
Physical Medium
Print
Metadata
Show full item recordCitation
Gordon, G., Joseph, J., Sawyer, T., Macfaden, A. J., Williams, C., Wilkinson, T., & Bohndiek, S. (2019). Full-field quantitative phase and polarisation-resolved imaging through an optical fibre bundle.. Optics express, 27 (17), 23929-23947. https://doi.org/10.1364/oe.27.023929
Abstract
Flexible optical fibres, used in conventional medical endoscopy and industrial inspection, scramble phase and polarisation information, restricting users to amplitude-only imaging. Here, we exploit the near-diagonality of the multi-core fibre (MCF) transmission matrix in a parallelised fibre characterisation architecture, enabling accurate imaging of quantitative phase (error < 0:3 rad) and polarisation-resolved (errors < 10%) properties. We first demonstrate accurate recovery of optical amplitude and phase in two polarisations through the MCF by measuring and inverting the transmission matrix, and then present a robust Bayesian inference approach to resolving 5 polarimetric properties of samples. Our method produces high-resolution (9:0 2:6 mamplitude, phase; 36:0 10:4 mpolarimetric) full-field images at working distances up to 1mm over a field-of-view up to 750 750 m2 using an MCF with potential for flexible operation. We demonstrate the potential of using quantitative phase for computational image focusing and polarisation-resolved properties in imaging birefringence.
Sponsorship
Cancer Research UK (21102)
EPSRC (EP/J009369/1)
Cancer Research UK (24669)
European Commission (630729)
Cancer Research UK (16267)
Cancer Research UK (C14303/A17197)
EPSRC (EP/N014588/1)
Cancer Research UK (C14303_do not transfer)
Cancer Research UK (C20/A20976)
EPSRC (EP/R003599/1)
Embargo Lift Date
2022-07-17
Identifiers
External DOI: https://doi.org/10.1364/oe.27.023929
This record's URL: https://www.repository.cam.ac.uk/handle/1810/294729
Rights
All rights reserved