Time-of-flight 3D imaging through multimode optical fibers

0549643 - ÚPT 2022 RIV US eng J - Článek v odborném periodiku
Stellinga, D. - Phillips, D. B. - Mekhail, S. P. - Selyem, A. - Turtaev, S. - Čižmár, Tomáš - Padgett, M. J.
Time-of-flight 3D imaging through multimode optical fibers.
Science. Roč. 374, č. 6573 (2021), s. 1395-1399. ISSN 0036-8075. E-ISSN 1095-9203
Grant CEP: GA MŠMT EF15_003/0000476
Institucionální podpora: RVO:68081731
Klíčová slova: light * multimode optical fibre * wavefront shaping
Obor OECD: Optics (including laser optics and quantum optics)
Impakt faktor: 63.832, rok: 2021
Způsob publikování: Omezený přístup
https://www.science.org/doi/10.1126/science.abl3771

Time-of-flight three-dimensional (3D) imaging has applications that range from industrial inspection to motion tracking. Depth is recovered by measuring the round-trip flight time of laser pulses, typically using collection optics of several centimeters in diameter. We demonstrate near–video-rate 3D imaging through multimode fibers with a total aperture of several hundred micrometers. We implement aberration correction using wavefront shaping synchronized with a pulsed source and scan the scene at ~23,000 points per second. We image moving objects several meters beyond the end of an ~40-centimeters-long fiber of 50-micrometer core diameter at frame rates of ~5 hertz. Our work grants far-field depth-resolving capabilities to ultrathin microendoscopes, which we expect to have applications to clinical and remote inspection scenarios.
Trvalý link: http://hdl.handle.net/11104/0325600


Vědecká data: University of Glasgow