Large band multiphoton microendoscope with single-core standard graded-index multimode fiber based on spatial beam self-cleaning - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Proceedings of SPIE, the International Society for Optical Engineering Année : 2023

Large band multiphoton microendoscope with single-core standard graded-index multimode fiber based on spatial beam self-cleaning

Résumé

We demonstrate the feasibility of multiphoton fluorescence imaging with high spatial resolution using commercially available single-core 50/125 multimode graded-index fiber. Light propagating forward inside the endoscopic fiber undergoes a non-reciprocal propagation exhibiting a robust nonlinear spatial self-cleaning process. Whereas fluorescence from nonlinear interactions with biological samples linearly propagates backward along the same fiber. The scanner head, located at the distal end of the endoscope and suited for multimode fibers, is based on a ceramic tube where the fiber end follows a spiral course to explore the sample. No knowledge of the fiber transfer matrix is required.
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Dates et versions

hal-04181406 , version 1 (17-07-2024)

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Tigran Mansuryan, Nour Tabcheh, Marc Fabert, Katarzyna Krupa, Raphael Jauberteau, et al.. Large band multiphoton microendoscope with single-core standard graded-index multimode fiber based on spatial beam self-cleaning. Proceedings of SPIE, the International Society for Optical Engineering, 2023, Endoscopic Microscopy XVIII, 12356, pp.29. ⟨10.1117/12.2652346⟩. ⟨hal-04181406⟩

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