Massachusetts Institute of Technology

Harvard College

Charles Roques-Carmes

Marin Soljacic

Tena Dubcek

Yichen Shen

Li Jing

Scott A Skirlo

Hengameh Bagherianlemraski

John Dimitris Joannopoulos

Federico Capasso

Karl Kimon Berggren

Robert C Devlin

Mohammadreza Khorasaninejad

Wei Ting Chen

Wei-Ting Chen

Alexander Yutong Zhu

Yi Yang

Jaewon Oh

Ido Kaminer

Nicholas H Rivera

Phillip Donald Keathley

Steven E Kooi

Aviram Massuda

Yujia Yang

Ishan Mishra

Robert Charles Devlin

A photonic parallel network can be used to sample combinatorially hard distributions of Ising problems. The photonic parallel network, also called a photonic processor, finds the ground state of a general Ising problem and can probe critical behaviors of universality classes and their critical exponents. In addition to the attractive features of photonic networks—passivity, parallelization, high-speed and low-power—the photonic processor exploits dynamic noise that occurs during the detection process to find ground states more efficiently.

Optical Ising machines and optical convolutional neural networks

A meta-lens having a phase profile includes a substrate and a plurality of nanostructures disposed on the substrate. Each individual nanostructure of the nanostructures imparts a light phase shift that varies depending on a location of the individual nanostructure on the substrate. The light phase shifts of the nanostructures define the phase profile of the meta-lens. The varying light phase shifts can be realized by, e.g., changing orientations of nanofins or changing diameters of nanopillars.

Meta-lenses for sub-wavelength resolution imaging

A photonic parallel network can be used to sample combinatorially hard distributions of Ising problems. The photonic parallel network, also called a photonic processor, finds the ground state of a general Ising problem and can probe critical behaviors of universality classes and their critical exponents. In addition to the attractive features of photonic networks&#x2014;passivity, parallelization, high-speed and low-power&#x2014;the photonic processor exploits dynamic noise that occurs during the detection process to find ground states more efficiently.

An apparatus for generating Smith-Purcell radiation having at least one spectral component at a wavelength &#x3bb; includes a periodic structure including a dielectric material and an electron source, in electromagnetic communication with the periodic structure, to emit an electron beam propagating within about 5&#x3bb; from a surface of the periodic structure to induce emission of the Smith-Purcell radiation. The electron beam has an electron energy tunable between about 0.5 keV and about 40 keV so as to change a wavelength of the Smith-Purcell radiation.

Apparatus and methods for generating and enhancing Smith-Purcell radiation

Growing community of inventors

Cambridge, MA, United States of America

Charles Roques-Carmes