Personne
Babak Rahmani
Cette personne n’est plus à l’EPFL
Publications associées (14)
Backpropagation-free training of deep physical neural networks
Romain Christophe Rémy Fleury, Ali Momeni, Matthieu Francis Malléjac, Babak Rahmani, Marc Philipp Del Hougne
Recent successes in deep learning for vision and natural language processing are attributed to larger models but come with energy consumption and scalability issues. Current training of digital deep-learning models primarily relies on backpropagation that ...
2023Learning of physical systems: from inference to control
To characterize a physical system to behave as desired, either its underlying governing rulesmust be known a priori or the system itself be accurately measured. The complexity of fullmeasurements of the system scales with its size. When exposed to real-wor ...
EPFL2022Deep Learning-Based Image Classification through a Multimode Fiber in the Presence of Wavelength Drift
Demetri Psaltis, Christophe Moser, Navid Borhani, Eirini Kakkava, Babak Rahmani, Ugur Tegin
Deep neural networks (DNNs) are employed to recover information after its propagation through a multimode fiber (MMF) in the presence of wavelength drift. The intensity distribution of the speckle patterns generated at the output of an MMF when an input wa ...
2020Controlling spatiotemporal nonlinearities in multimode fibers with deep neural networks
Demetri Psaltis, Navid Borhani, Eirini Kakkava, Babak Rahmani, Ugur Tegin
Spatiotemporal nonlinear interactions in multimode fibers are of interest for beam shaping and frequency conversion by exploiting the nonlinear interaction of different pump modes from quasi-continuous wave to ultrashort pulses centered around visible to i ...
2020Terahertz Quarter Wave-Plate Metasurface Polarizer Based on Arrays of Graphene Ribbons
We propose a novel graphene-dielectric-based meta-surface for manipulating the polarization of the incident light in the terahertz regime. The proposed structure comprised two orthogonally oriented periodic array of graphene ribbons (PAGRs) which are separ ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2019