Intelligent metasurfaces: control, communication and computing

L Li, H Zhao, C Liu, L Li, TJ Cui - Elight, 2022 - Springer
Controlling electromagnetic waves and information simultaneously by information
metasurfaces is of central importance in modern society. Intelligent metasurfaces are smart …

Analogue computing with metamaterials

F Zangeneh-Nejad, DL Sounas, A Alù… - Nature Reviews …, 2021 - nature.com
Despite their widespread use for performing advanced computational tasks, digital signal
processors suffer from several restrictions, including low speed, high power consumption …

Deep physical neural networks trained with backpropagation

LG Wright, T Onodera, MM Stein, T Wang… - Nature, 2022 - nature.com
Deep-learning models have become pervasive tools in science and engineering. However,
their energy requirements now increasingly limit their scalability. Deep-learning …

Smart radio environments empowered by reconfigurable AI meta-surfaces: An idea whose time has come

MD Renzo, M Debbah, DT Phan-Huy… - EURASIP Journal on …, 2019 - Springer
Future wireless networks are expected to constitute a distributed intelligent wireless
communications, sensing, and computing platform, which will have the challenging …

An optical neural network using less than 1 photon per multiplication

T Wang, SY Ma, LG Wright, T Onodera… - Nature …, 2022 - nature.com
Deep learning has become a widespread tool in both science and industry. However,
continued progress is hampered by the rapid growth in energy costs of ever-larger deep …

Wavefront shaping: a versatile tool to conquer multiple scattering in multidisciplinary fields

Z Yu, H Li, T Zhong, JH Park, S Cheng, CM Woo… - The Innovation, 2022 - cell.com
Optical techniques offer a wide variety of applications as light-matter interactions provide
extremely sensitive mechanisms to probe or treat target media. Most of these …

Meta-programmable analog differentiator

J Sol, DR Smith, P Del Hougne - Nature Communications, 2022 - nature.com
We present wave-based signal differentiation with unprecedented fidelity and flexibility by
purposefully perturbing overmoded random scattering systems such that zeros of their …

Imaging and computing with disorder

S Gigan - Nature Physics, 2022 - nature.com
Complex and inhomogeneous media are ubiquitous around us. Snow, fog, biological
tissues and turbid water—even just a piece of frosted glass—are opaque to light due to …

In situ optical backpropagation training of diffractive optical neural networks

T Zhou, L Fang, T Yan, J Wu, Y Li, J Fan, H Wu… - Photonics …, 2020 - opg.optica.org
Training an artificial neural network with backpropagation algorithms to perform advanced
machine learning tasks requires an extensive computational process. This paper proposes …

Backpropagation-free training of deep physical neural networks

A Momeni, B Rahmani, M Malléjac, P Del Hougne… - Science, 2023 - science.org
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 …