Zobrazeno 1 - 10
of 179
pro vyhledávání: '"Čižmár Tomáš"'
Autor:
Mekhail Simon Peter, Stellinga Daan, Phillips David, Selyem Adam, Turtaev Sergey, Čižmár Tomáš, Padgett Miles
Publikováno v:
EPJ Web of Conferences, Vol 287, p 09022 (2023)
We measure the modal dispersion occurring in a single multimode fibre and account for this using a digital micromirror device to form a raster scanning spot in the far field of the distal facet of the fibre. We perform this with a q-switched 700 ps p
Externí odkaz:
https://doaj.org/article/a934559b78b14ca990b591b9e3541c74
Autor:
Cifuentes Angel, Trägårdh Johanna, Pikálek Tomáš, Šerý Mojmír, Akimov Denis, Meyer Tobias, Popp Jürgen, Amezcua-Correa Rodrigo, Čižmár Tomáš
Publikováno v:
EPJ Web of Conferences, Vol 238, p 04006 (2020)
In recent years, great advances have been made in developing minimal footprint micro-endoscopes using multimode optical fibres (MMF) [1]. By employing wavefront shaping methods the seemingly random speckle pattern resulting from the guiding of cohere
Externí odkaz:
https://doaj.org/article/7afcefdd6c074ec3b5df51ba7d0b85f2
Publikováno v:
EPJ Web of Conferences, Vol 238, p 02007 (2020)
Multimode fibres (MMF) used in endoscopy have advantage of small diameter and flexibility, thus causing less damage to living animals. However, the imaging requires wavefront shaping techniques to obtain a sharp image despite the mode dispersion in t
Externí odkaz:
https://doaj.org/article/518cca34008c42aebd390c83b86ec47b
Publikováno v:
Advances in Optics and Photonics 15, 524-612 (2023)
Light transport in a highly multimode fiber exhibits complex behavior in space, time, frequency and polarization, especially in the presence of mode coupling. The newly developed techniques of spatial wavefront shaping turn out to be highly suitable
Externí odkaz:
http://arxiv.org/abs/2305.09623
Publikováno v:
Intell. Comput. 2022, 9816026
When light propagates through a multimode optical fibre (MMF), the spatial information it carries is scrambled. Wavefront shaping can undo this scrambling, typically one spatial mode at a time - enabling deployment of MMFs as ultra-thin micro-endosco
Externí odkaz:
http://arxiv.org/abs/2204.02865
Autor:
Gigan, Sylvain, Katz, Ori, de Aguiar, Hilton B., Andresen, Esben Ravn, Aubry, Alexandre, Bertolotti, Jacopo, Bossy, Emmanuel, Bouchet, Dorian, Brake, Joshua, Brasselet, Sophie, Bromberg, Yaron, Cao, Hui, Chaigne, Thomas, Cheng, Zhongtao, Choi, Wonshik, Čižmár, Tomáš, Cui, Meng, Curtis, Vincent R, Defienne, Hugo, Hofer, Matthias, Horisaki, Ryoichi, Horstmeyer, Roarke, Ji, Na, LaViolette, Aaron K., Mertz, Jerome, Moser, Christophe, Mosk, Allard P., Pégard, Nicolas C., Piestun, Rafael, Popoff, Sebastien, Phillips, David B., Psaltis, Demetri, Rahmani, Babak, Rigneault, Hervé, Rotter, Stefan, Tian, Lei, Vellekoop, Ivo M., Waller, Laura, Wang, Lihong, Weber, Timothy, Xiao, Sheng, Xu, Chris, Yamilov, Alexey, Yang, Changhuei, Yılmaz, Hasan
The last decade has seen the development of a wide set of tools, such as wavefront shaping, computational or fundamental methods, that allow to understand and control light propagation in a complex medium, such as biological tissues or multimode fibe
Externí odkaz:
http://arxiv.org/abs/2111.14908
Autor:
Stellinga, Daan, Phillips, David B., Mekhail, Simon Peter, Selyem, Adam, Turtaev, Sergey, Čižmár, Tomáš, Padgett, Miles J.
Publikováno v:
Science 374 (2021), 1395-1399
Time-of-flight (ToF) 3D imaging has a wealth of applications, from industrial inspection to movement tracking and gesture recognition. Depth information is recovered by measuring the round-trip flight time of laser pulses, which usually requires proj
Externí odkaz:
http://arxiv.org/abs/2107.11450
Here we demonstrate the all-optical manipulation of polymeric membranes in microfluidic environments. The membranes are decorated with handles for their use in holographic optical tweezers setups. Our results show that due to their form factor the me
Externí odkaz:
http://arxiv.org/abs/2102.01957
Publikováno v:
APL Photonics 6 (2021) 036112
Holographic wavefront manipulation enables converting hair-thin multimode optical fibres into minimally invasive lensless imaging instruments conveying much higher information densities than conventional endoscopes. Their most prominent applications
Externí odkaz:
http://arxiv.org/abs/2011.03600
Autor:
Li, Shuhui, Saunders, Charles, Lum, Daniel J., Murray-Bruce, John, Goyal, Vivek K, Cizmar, Tomas, Phillips, David B.
Measurement of the optical transmission matrix (TM) of an opaque material is an advanced form of space-variant aberration correction. Beyond imaging, TM-based methods are emerging in a range of fields including optical communications, optical micro-m
Externí odkaz:
http://arxiv.org/abs/2007.15891