Swept-source multimode fiber imaging.

Sci Rep

Nanoscale Imaging and Metrology, Advanced Research Center for Nanolithography (ARCNL), Science Park 106, 1098 XG, Amsterdam, The Netherlands.

Published: May 2023

AI Article Synopsis

  • A new method for high-resolution imaging using a flexible multimode fiber has been demonstrated, utilizing a swept-laser source and specific wavelength-dependent illumination to enhance image quality.
  • This technique eliminates the need for mechanical scanning, allowing for faster image acquisition while maintaining excellent resolution—reducing the time taken by 95% compared to traditional approaches.
  • The narrow-band light in the visible spectrum is particularly important for detecting fluorescence biomarkers, making this method promising for neuroimaging and minimally invasive procedures.

Article Abstract

High-resolution compressive imaging via a flexible multimode fiber is demonstrated using a swept-laser source and wavelength dependent speckle illumination. An in-house built swept-source allowing for independent control of bandwidth and scanning range is used to explore and demonstrate a mechanically scan-free approach for high-resolution imaging through an ultrathin and flexible fiber probe. The computational image reconstruction is shown by utilizing a narrow sweeping bandwidth of [Formula: see text] nm while acquisition time is decreased by 95% compared to conventional raster scanning endoscopy. Demonstrated narrow-band illumination in the visible spectrum is vital for the detection of fluorescence biomarkers in neuroimaging applications. The proposed approach yields device simplicity and flexibility for minimally invasive endoscopy.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10195867PMC
http://dx.doi.org/10.1038/s41598-023-34062-6DOI Listing

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