Roadmap on wavefront sha** and deep imaging in complex media

S Gigan, O Katz, HB De Aguiar… - Journal of Physics …, 2022 - iopscience.iop.org
The last decade has seen the development of a wide set of tools, such as wavefront
sha**, computational or fundamental methods, that allow us to understand and control …

[HTML][HTML] Ultra-thin 3D lensless fiber endoscopy using diffractive optical elements and deep neural networks

R Kuschmierz, E Scharf… - Light: Advanced …, 2021 - light-am.com
Minimally invasive endoscopes are indispensable in biomedicine. Coherent fiber bundles
(CFBs) enable ultrathin lensless endoscopes. However, the propagation of light through a …

Real-time holographic lensless micro-endoscopy through flexible fibers via fiber bundle distal holography

N Badt, O Katz - Nature Communications, 2022 - nature.com
Fiber-based micro-endoscopes are a critically important tool for minimally-invasive deep-
tissue imaging. However, current micro-endoscopes cannot perform three-dimensional …

Guidestar-free image-guided wavefront sha**

T Yeminy, O Katz - Science advances, 2021 - science.org
Optical imaging through scattering media is a fundamental challenge in many applications.
Recently, breakthroughs such as imaging through biological tissues and looking around …

Characterizing optical fiber transmission matrices using metasurface reflector stacks for lensless imaging without distal access

GSD Gordon, M Gataric, AGCP Ramos, R Mouthaan… - Physical review X, 2019 - APS
The ability to retrieve image data through hair-thin optical fibers promises to open up new
applications in a range of fields, from biomedical imaging to industrial inspection …

Real-time complex light field generation through a multi-core fiber with deep learning

J Sun, J Wu, N Koukourakis, L Cao, R Kuschmierz… - Scientific reports, 2022 - nature.com
The generation of tailored complex light fields with multi-core fiber (MCF) lensless
microendoscopes is widely used in biomedicine. However, the computer-generated …

Bend translation in multimode fiber imaging

D Loterie, D Psaltis, C Moser - Optics express, 2017 - opg.optica.org
Light propagation in multimode fibers is typically assumed to be extremely sensitive to
changes in geometry. We study here a particular configuration where an S-shaped bend is …

Self-calibration of lensless holographic endoscope using programmable guide stars

R Kuschmierz, E Scharf, N Koukourakis, JW Czarske - Optics letters, 2018 - opg.optica.org
Coherent fiber bundle (CFB)–based endoscopes enable optical keyhole access in
applications such as biophotonics. In conjunction with objective lenses, CFBs allow imaging …

Selective femtosecond laser ablation via two-photon fluorescence imaging through a multimode fiber

E Kakkava, M Romito, DB Conkey, D Loterie… - Biomedical optics …, 2019 - opg.optica.org
We demonstrate the ability of a multimode fiber probe to provide two-photon fluorescence
(TPF) imaging feedback that guides the femtosecond laser ablation (FLA) in biological …

Two-photon lensless micro-endoscopy with in-situ wavefront correction

U Weiss, O Katz - Optics Express, 2018 - opg.optica.org
Multi-core fiber-bundle endoscopes provide a minimally-invasive solution for deep tissue
imaging and opto-genetic stimulation, at depths beyond the reach of conventional …