Article-Journal

Isotropic inverse-problem approach for two-dimensional phase unwrapping
In this paper, we propose a new technique for two-dimensional phase unwrapping. The unwrapped phase is found as the solution of an …
Ulugbek S. Kamilov, Yannis Papadopoulos, Morteza H. Shoreh, Demetri Psaltis, and Michael Unser.
Cite DOI URL
Learning approach to optical tomography
We describe a method for imaging 3D objects in a tomographic configuration implemented by training an artificial neural network to …
Ulugbek S. Kamilov, Yannis Papadopoulos, Morteza H. Shoreh, Alexandre Goy, Cedric Vonesch, Michael Unser, and Demetri Psaltis.
Cite DOI URL
Translation correlations in anisotropically scattering media
Controlling light propagation across scattering media by wavefront shaping holds great promise for a wide range of communications and …
Benjamin Judkewitz, Roarke Horstmeyer, Ivo M. Vellekoop, Yannis Papadopoulos, and Changhuei Yang.
Cite DOI URL
Delivery of focused short pulses through a multimode fiber
Light propagation through multimode fibers suffers from spatial distortions that lead to a scrambled intensity profile. In previous …
Edgar E. Morales-Delgado, Salma Farahi, Yannis Papadopoulos, Demetri Psaltis, and Christophe Moser.
Cite DOI URL
Optical-resolution photoacoustic microscopy by use of a multimode fiber
We demonstrate Optical-Resolution Photoacoustic Microscopy (OR-PAM), where the optical field is focused and scanned using Digital Phase …
Yannis Papadopoulos, Olivier Simandoux, Salma Farahi, Jean Pierre Huignard, Emmanuel Bossy, Demetri Psaltis, and Christophe Moser.
Cite DOI URL
Dynamic bending compensation while focusing through a multimode fiber
Multimode fiber endoscopes have recently been shown to provide sub-micrometer resolution, however, imaging through a multimode fiber is …
Salma Farahi, David Ziegler, Yannis Papadopoulos, Demetri Psaltis, and Christophe Moser.
Cite DOI URL
High-resolution, lensless endoscope based on digital scanning through a multimode optical fiber
We propose and experimentally demonstrate an ultra-thin rigid endoscope (450 μm diameter) based on a passive multimode optical fiber. …
Yannis Papadopoulos, Salma Farahi, Christophe Moser, and Demetri Psaltis.
Cite DOI URL
Increasing the imaging capabilities of multimode fibers by exploiting the properties of highly scattering media
We present a novel design that exploits the focusing properties of scattering media to increase the resolution and the working distance …
Yannis Papadopoulos, Salma Farahi, Christophe Moser, and Demetri Psaltis.
Cite DOI URL
Imaging: The fog clears
Demetri Psaltis and Yannis Papadopoulos.
Cite DOI URL
Focusing and scanning light through a multimode optical fiber using digital phase conjugation
We demonstrate for the first time to our knowledge a digital phase conjugation technique for generating a sharp focus point at the end …
Yannis Papadopoulos, Salma Farahi, Christophe Moser, and Demetri Psaltis.
Cite DOI URL