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Towards high speed needle microscopy through a multimode fiber by single pixel imaging

Mididoddi, Chaitanya Kumar and Hughes, Michael R. (2019) Towards high speed needle microscopy through a multimode fiber by single pixel imaging. In: Endoscopic Microscopy XIV. SPIE, Bellingham, Washington, p. 44. ISBN 978-1-5106-2350-7. E-ISBN 978-1-5106-2351-4. (doi:10.1117/12.2509869) (KAR id:74601)

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We present a proof of concept for microscopy through a multimode fiber using single pixel imaging. We present two implementations, one using galvo scanners and a diffuser plate and one using a digital micromirror device (DMD). Using these setups we can generate thousands of distinct speckle patterns at the distal end of a 50 micron core fiber as illumination patterns for single pixel imaging. We show that the correlation between speckle patterns can be made as low as 30% and the repeatability as high as 98% for a sample of 3200 patterns, and show example single pixel images using a distal detector.

Item Type: Book section
DOI/Identification number: 10.1117/12.2509869
Projects: [UNSPECIFIED] Ultrathin Fluorescence Microscope in a Needle
Uncontrolled keywords: speckle pattern; digital micromirror devices; imaging systems; multimde fibers; cameras; calibration; mirrors
Divisions: Divisions > Division of Natural Sciences > School of Physical Sciences
Depositing User: Michael Hughes
Date Deposited: 26 Jun 2019 16:32 UTC
Last Modified: 16 Feb 2021 14:05 UTC
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