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Article Dans Une Revue Optics Express Année : 2023

Sub-diffraction computational imaging via a flexible multicore-multimode fiber

Résumé

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 multicoremultimode 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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Dates et versions

hal-04039570 , version 1 (21-03-2023)

Identifiants

Citer

Zhouping Lyu, Ksenia Abrashitova, Johannes F de Boer, Esben Andresen, Hervé Rigneault, et al.. Sub-diffraction computational imaging via a flexible multicore-multimode fiber. Optics Express, 2023, 7, pp.11249-11260. ⟨10.1364/OE.481052⟩. ⟨hal-04039570⟩
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