2023-03-20
Sub-diffraction computational imaging via a flexible multicore-multimode fiber
Publication
Publication
Opt. Express , Volume 31 - Issue 7 p. 11249- 11260
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.
Additional Metadata | |
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OPG | |
Dutch Ministry of Economic Affairs, TKI | |
doi.org/10.1364/oe.481052 | |
Opt. Express | |
Organisation | Nanoscale Imaging and Metrology |
Lyu, Z., Abrashitova, K., de Boer, J., Andresen, E., Hervé, R., & Amitonova, L. (2023). Sub-diffraction computational imaging via a flexible multicore-multimode fiber. Opt. Express, 31(7), 11249–11260. doi:10.1364/oe.481052 |