Zobrazeno 1 - 10
of 115
pro vyhledávání: '"Tomáš Čižmár"'
Autor:
Miroslav Stibůrek, Petra Ondráčková, Tereza Tučková, Sergey Turtaev, Martin Šiler, Tomáš Pikálek, Petr Jákl, André Gomes, Jana Krejčí, Petra Kolbábková, Hana Uhlířová, Tomáš Čižmár
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-9 (2023)
Controlled light transport through multimode fibres has recently emerged as uniquely atraumatic prospect to study deep brain structures. Here, authors present hair-thin endoscope providing detailed view through the whole depth of living animal brain.
Externí odkaz:
https://doaj.org/article/d2a48eb34d0846fb872622dc10ad6e64
Autor:
Yang Du, Sergey Turtaev, Ivo T Leite, Adrian Lorenz, Jens Kobelke, Katrin Wondraczek, Tomáš Čižmár
Publikováno v:
Light: Advanced Manufacturing, Vol 3, Pp 1-9 (2022)
In-vivo microendoscopy in animal models became a groundbreaking technique in neuroscience that rapidly expands our understanding of the brain. Emerging hair-thin endoscopes based on multimode fibres are now opening up the prospect of ultra-minimally
Externí odkaz:
https://doaj.org/article/645ee5a1501d463f9323bd80dda68aa4
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-13 (2021)
Imaging through scattering media is possible using a transmission matrix or the memory effect. Here, the authors describe the nature of optical memory effects in structures of arbitrary geometry and use this framework to estimate the transmission mat
Externí odkaz:
https://doaj.org/article/145a016c6b75435ab800c2ff776c6728
Autor:
Shuhui Li, Charles Saunders, Daniel J. Lum, John Murray-Bruce, Vivek K Goyal, Tomáš Čižmár, David B. Phillips
Publikováno v:
Light: Science & Applications, Vol 10, Iss 1, Pp 1-15 (2021)
Abstract The 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, m
Externí odkaz:
https://doaj.org/article/a355b2a02a6742028a41051d9436925d
Publikováno v:
Intelligent Computing, Vol 2022 (2022)
When light propagates through multimode optical fibres (MMFs), the spatial information it carries is scrambled. Wavefront shaping reverses this scrambling, typically one spatial mode at a time—enabling deployment of MMFs as ultrathin microendoscope
Externí odkaz:
https://doaj.org/article/ee26eb8ad6194d43a5896139c5bd9ff1
Publikováno v:
APL Photonics, Vol 6, Iss 3, Pp 036112-036112-9 (2021)
Holographic wavefront manipulation enables converting hair-thin multimode optical fibers into minimally invasive lensless imaging instruments conveying much higher information densities than conventional endoscopes. Their most prominent applications
Externí odkaz:
https://doaj.org/article/696bcf659613451b8186f1f4114490f4
Autor:
Petr Jákl, Martin Šiler, Jan Ježek, Ángel Cifuentes, Johanna Trägårdh, Pavel Zemánek, Tomáš Čižmár
Publikováno v:
Photonics, Vol 9, Iss 1, p 37 (2022)
The interferometric acquisition of the transmission matrix (TM) of a multimode optical fibre (MMF), which is at the heart of multimode fibre-based endoscopic imaging methods, requires using a reference beam. Attempts to use an internal reference, tha
Externí odkaz:
https://doaj.org/article/3016c867710b481888187cdccd7ea90d
Publikováno v:
22nd Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics.
Autor:
Stanislav Krátký, Sergey Turtaev, Petr Jákl, Dirk E. Boonzajer Flaes, Hana Uhlířová, Tomáš Čižmár, Martin Šiler, Rainer Heintzmann, Tereza Tučková
Publikováno v:
OPTICS EXPRESS. 2021, vol. 29, issue 23, p. 38206-38220.
Optics Express
Optics Express
In imaging geometries, which employ wavefront-shaping to control the light transport through a multi-mode optical fibre (MMF), this terminal hair-thin optical component acts as a minimally invasive objective lens, enabling high resolution laser-scann
Autor:
Petra Ondráčková, A. Cifuentes, Johanna Trägårdh, Rodrigo Amezcua-Correa, Tomáš Čižmár, Jose Enrique Antonio-Lopez, Tomáš Pikálek
Publikováno v:
Scopus-Elsevier
Wavefront shaping has made minimal footprint micro-endoscopes possible by focusing of a tight spot at a multimode optical fiber’s (MMF) tip. Here we show polarization resolved second harmonic generation (SHG) microscopy through a MMF.