Compressive fluorescence imaging using a multi-core fiber and spatially dependent scattering

We demonstrate imaging using a multi-core fiber with a scattering distal tip and compressed sensing signal acquisition. We illuminate objects with randomly structured speckle patterns generated by a coherent light source separately coupled through each fiber core to a ground glass diffuser at the di...

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Bibliographic Details
Published in:Optics letters 2017-01, Vol.42 (1), p.109-112
Main Authors: Shin, Jaewook, Bosworth, Bryan T, Foster, Mark A
Format: Article
Language:English
Subjects:
Bending
Coherent light
Diffusers
Fibers
Grounds
Imaging
Scattering
Speckle patterns
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Description
Summary:We demonstrate imaging using a multi-core fiber with a scattering distal tip and compressed sensing signal acquisition. We illuminate objects with randomly structured speckle patterns generated by a coherent light source separately coupled through each fiber core to a ground glass diffuser at the distal end. Using the characterized speckle patterns and the total light collected from the object, we computationally recover pixelation-free object images with up to a seven times higher space-bandwidth product than the number of cores. The proposed imaging system is insensitive to bending of the fiber and extremely compact, making it suitable for minimally invasive endomicroscopy.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.42.000109