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Keynote Lectures

Holographic Micro-endoscopy Based on Multimode Waveguides
Tomáš Čižmár, Leibniz Institute of Photonic Technology, Germany

Available Soon
Theo Rasing, Radboud University, Netherlands

 

Holographic Micro-endoscopy Based on Multimode Waveguides

Tomáš Čižmár
Leibniz Institute of Photonic Technology
Germany
 

Brief Bio
Tomáš Cižmár is a Professor in Waveguide optics at the Friedrich-Schiller University Jena, he leads the Fibre Research & Technology department at the Leibniz-IPHT in Jena and the group of Complex Photoonics at ISI Brno. Although his scientific background is Physics, throughout his scientific career he took part in a variety of inter-disciplinary projects in Bio-Medical Photonics, mostly related to optical manipulation, digital holography, microscopy and cell biology. His recent research activities are focused on Photonics in random environments and highly turbid media such as biological tissues or multimode waveguides.

* 2017 onwards
   * Head of the Complex Photonics lab at ISI CAS Brno
   * Head of the Fibre Research Technology department at Leibniz-IPHT Jena
   * Professor in Waveguide optics, Friedrich-Schiller University Jena
* 2013 - 2017 - Reader in Physics Life Sciences, University of Dundee, Scotland, UK
* 2010 - 2013 - Academic research fellow at School of Medicine, University of St Andrews, Scotland, UK
* 2007 - 2010 - PDRA at School of Physics and Astronomy, University of St Andrews, Scotland, UK
* 2003 - 2006 - PhD at the Institute of Scientific Instruments Masaryk University, Brno, Czechia


Abstract
The turbid nature of refractive index distribution within living tissues introduces severe aberrations to light propagation thereby severely compromising image reconstruction using currently available non-invasive techniques. Numerous approaches of endoscopy, based mainly on fibre bundles or GRIN-lenses, allow imaging within extended depths of turbid tissues, however, their footprint causes profound mechanical damage to all overlying regions.
Progress in the domain of complex photonics enabled a new generation of minimally invasive, high-resolution endoscopes by substitution of the Fourier-based image relays with a holographic control of light propagating through apparently randomizing multimode optical waveguides. This form of endo-microscopy became recently a very attractive way to provide minimally invasive insight into hard-to-access locations within living objects.
I will review our fundamental and technological progression in this domain and introduce several applications of this concept in bio-medically relevant environments.
I will present isotropic volumetric imaging modality based on light-sheet microscopy. Further, I will demonstrate the utilization of multimode fibres for imaging in a brain tissue of a living animal model.
Lastly, I will show the development and exploitation of highly specialised fibre probes for numerous advanced bio-photonics applications including high-resolution imaging and optical manipulation.



 

 

Keynote Lecture

Theo Rasing
Radboud University
Netherlands
 

Brief Bio
Available Soon


Abstract
Available Soon



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