AI Article Synopsis
- An ultra-thin multimode fiber is useful for minimally invasive microscopy due to its high mode density and spatial resolution, but flexibility can compromise imaging quality.
- A novel flexible probe using a multicore-multimode fiber with 120 single-mode cores is developed to maintain imaging capabilities while being long and flexible.
- This approach enables stable light delivery and optimal structured light illumination for sub-diffraction imaging, showcasing fast and resilient imaging through computational compressive sensing.
Article Abstract
An ultra-thin multimode fiber is an ideal platform for minimally invasive microscopy with the advantages of a high density of modes, high spatial resolution, and a compact size. In practical applications, the probe needs to be long and flexible, which unfortunately destroys the imaging capabilities of a multimode fiber. In this work, we propose and experimentally demonstrate sub-diffraction imaging through a flexible probe based on a unique multicore-multimode fiber. A multicore part consists of 120 Fermat's spiral distributed single-mode cores. Each of the cores offers stable light delivery to the multimode part, which provides optimal structured light illumination for sub-diffraction imaging. As a result, perturbation-resilient fast sub-diffraction fiber imaging by computational compressive sensing is demonstrated.
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| http://dx.doi.org/10.1364/OE.481052 | DOI Listing |
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