New ways to look through multimode optical fibres

0572453 - ÚPT 2024 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Phillips, D. B. - Li, S. - Būtaitė, U. G. - Kupianskyi, H. - Horsley, S. A. R. - Čižmár, Tomáš
New ways to look through multimode optical fibres.
Adaptive Optics and Wavefront Control for Biological Systems IX. Bellingham: SPIE, 2023 - (Bifano, T.; Ji, N.; Tian, L.), (2023), č. článku 123880E. Proceedings of SPIE, Progress in Biomedical Optics and Imaging, 12388. ISBN 9781510658813. ISSN 1605-7422.
[SPIE BiOS. San Francisco (US), 29.01.2023-30.01.2023]
Institucionální podpora: RVO:68081731
Klíčová slova: multimode optical fibre
Obor OECD: Optics (including laser optics and quantum optics)
https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12388/2668358/New-ways-to-look-through-multimode-optical-fibres/10.1117/12.2668358.short

Hair-thin strands of multimode optical fibre (MMF) can operate as ultra-low footprint endoscopes – delivering sub-cellular resolution images from deep inside the body at the tip of a fine needle. However, images transmitted through MMFs are unrecognisably distorted. Here we present two new ways to unscramble this light and recover images. Firstly, we describe a new in-situ calibration technique requiring access to only the input end of the fibre – promising a way to image through flexible fibres. Secondly, we describe the design of a new optical element – an ‘optical inverter’ – that can unscramble all modes in parallel, offering the potential of single-shot and super-resolution imaging through MMFs.
Trvalý link: https://hdl.handle.net/11104/0343125