no code implementations • 17 Jan 2024 • Jingtian Hu, Kun Liao, Niyazi Ulas Dinc, Carlo Gigli, Bijie Bai, Tianyi Gan, Xurong Li, Hanlong Chen, Xilin Yang, Yuhang Li, Cagatay Isil, Md Sadman Sakib Rahman, Jingxi Li, Xiaoyong Hu, Mona Jarrahi, Demetri Psaltis, Aydogan Ozcan
To resolve subwavelength features of an object, the diffractive imager uses a thin, high-index solid-immersion layer to transmit high-frequency information of the object to a spatially-optimized diffractive encoder, which converts/encodes high-frequency information of the input into low-frequency spatial modes for transmission through air.
no code implementations • 17 Jul 2023 • Mustafa Yıldırım, Niyazi Ulas Dinc, Ilker Oguz, Demetri Psaltis, Christophe Moser
In this study, we present a novel framework that uses multiple scattering that is capable of synthesizing programmable linear and nonlinear transformations concurrently at low optical power by leveraging the nonlinear relationship between the scattering potential, represented by data, and the scattered field.
no code implementations • 30 May 2023 • Ilker Oguz, Junjie Ke, Qifei Wang, Feng Yang, Mustafa Yıldırım, Niyazi Ulas Dinc, Jih-Liang Hsieh, Christophe Moser, Demetri Psaltis
Neural networks (NN) have demonstrated remarkable capabilities in various tasks, but their computation-intensive nature demands faster and more energy-efficient hardware implementations.
no code implementations • 19 Aug 2022 • Mustafa Yıldırım, Ilker Oguz, Fabian Kaufmann, Marc Reig Escale, Rachel Grange, Demetri Psaltis, Christophe Moser
A dataset is encoded digitally on the spectrum of a femtosecond pulse which is then launched in the waveguide.
no code implementations • 28 Jul 2022 • Amirhossein Saba, Carlo Gigli, Ahmed B. Ayoub, Demetri Psaltis
Our physics-informed neural networks can be generalized for any forward and inverse scattering problem.
no code implementations • 10 Jun 2022 • Ahmed B. Ayoub, Amirhossein Saba, Carlo Gigli, Demetri Psaltis
The 3D NN starts with an initial guess for the 3D RI reconstruction (i. e. Born, or Rytov) and aims at reconstructing better 3D reconstruction based on an error function.
no code implementations • 25 Oct 2021 • Babak Rahmani, Demetri Psaltis, Christophe Moser
To characterize a physical system to behave as desired, either its underlying governing rules must be known a priori or the system itself be accurately measured.
1 code implementation • 22 Dec 2020 • Uğur Teğin, Mustafa Yıldırım, İlker Oğuz, Christophe Moser, Demetri Psaltis
Today's heavy machine learning tasks are fueled by large datasets.
1 code implementation • 29 Jun 2019 • Babak Rahmani, Damien Loterie, Eirini Kakkava, Navid Borhani, Uğur Teğin, Demetri Psaltis, Christophe Moser
The output of physical systems is often accessible by measurements such as the 3D position of a robotic arm actuated by many actuators or the speckle patterns formed by shining the spot of a laser pointer on a wall.
no code implementations • 13 Apr 2019 • S. Mohammad H. Hashemi, Demetri Psaltis
Providing fast and accurate solutions to partial differential equations is a problem of continuous interest to the fields of applied mathematics and physics.