Harvard College

Lucent Technologies Inc.

At&t Bell Laboratories

Other

Massachusetts Institute of Technology

Corning Incorporated

At&t Corp.

Bell Telephone Laboratories

Osram Sylvania Inc.

3m Innovative Properties Company

US Government As Represented by the Secretary of the Army

The General Hospital Corporation

Yale University

The Texas A&m University System

Osram Opto Semiconductors Gmbh

Federico Capasso

Alfred Yi Cho

Deborah Lee Sivco

Albert Lee Hutchinson

Claire F Gmachl

Jerome Faist

Alessandro Tredicucci

Carlo Sirtori

Mohammadreza Khorasaninejad

Wei-Ting Chen

Francesco Aieta

Noah A Rubin

James Nelson Baillargeon

Arthur Mike Sergent

Alexander Yutong Zhu

Yao-Wei Huang

Robert C Devlin

Mikhail A Kats

Zhujun Shi

Jaewon Oh

Nanfang Yu

Sung-Nee George Chu

Mikhail A Belkin

Laurent Diehl

Mariano Troccoli

Patrice Genevet

Won-Tien Tsang

Roger J Malik

Arthur C Gossard

Gaetano Scamarcio

Raffaele Colombelli

Romain Blanchard

Susanta Sen

Benjamin G Lee

Ming-Jun Li

Lars Samuelson

Hongkun Park

Alan Lenef

Nitin J Shah

Jun Yang

Wei Ting Chen

Kangmei Li

Todd Zickler

Evgueni E Narimanov

Alfred Douglas Stone

Paulo Clovis Dainese, Jr

Qi Guo

Alexander Arthur High

Marco Piccardo

Vyshakh Sanjeev

Emma Alexander

Rafaelle Colombelli

Roberto Paiella

Steve Byrnes

Jan Philipp Balthasar Mueller

Benedikt Groever

Zhaoyi Li

Fabio Beltram

Martin B Wolk

James M Nelson

Robert L Brott

Jonas Ohlsson

Steven G Johnson

Ji-Xin Cheng

Oskar Jon Painter

Masakazu Shoji

Marko Loncar

Karl K Stensvad

Antonio Sanchez-Rubio

C Kumar N Patel

Ralph A Logan

Pierre M Petroff

Sergey Luryi

Bertram Schwartz

Hock Min Ng

Barry Franklin Levine

Martin Magnusson

James A Cooper, Jr

Donald M Tennant

Michael C Wanke

Karvel K Thornber

Arkadiy Lyakh

Clyde G Bethea

Serge Luryi

Richard Maulini

Anish K Goyal

Harold Yoonsung Hwang

Christian Pfluegl

Alexei Tsekoun

Gareth F Williams

Harry Tapley French

Charles Roques-Carmes

Alexey Belyanin

Xinghui Yin

Albert T Macrander

Jens Uwe Noeckel

Marlin W Focht

Ruedeger Koehler

Milton L Peabody

Zin Lin

Disclosed is a depth sensor for determining depth. The depth sensor can include a photosensor, a metalens configured to manipulate light to simultaneously produce at least two images having different focal distances on a surface of the photosensor, and processing circuitry configured to receive, from the photosensor, a measurement of the at least two images having different focal distances. The depth sensor can determine, according to the measurement, a depth associated with at least one feature in the at least two images.

Compact metalens depth sensors

An endoscopic imaging device (e.g., a catheter) comprises a light-transmitting tubing, at least one optical fiber disposed in the light-transmitting tubing, and at least one metalens. The metalens is optically coupled to the optical fiber and is configured to focus light from the optical fiber, through the light-transmitting tubing, and to a target point located outside of the light-transmitting tubing. The metalens includes a plurality of nanostructures. The nanostructures define a phase profile that corrects astigmatism caused by the light-transmitting tubing.

Endoscopic imaging using nanoscale metasurfaces

The present disclosure provides an optical component, which may be a metasurface grating, including (a) a substrate; and (b) an array of subwavelength-spaced phase-shifting elements, which are tessellated on the substrate to produce, when illuminated with a polarized incident light, a diffracted light beam with a distinct polarization state for each of a finite number of diffraction orders, wherein the finite number is 2 or more.

Polarization state generation with a metasurface

Systems, devices, and techniques for performing wavelength division multiplexing or demultiplexing using one or more metamaterials in an optical communications systems are described. An optical device may be configured to shift one or more phase profiles of an optical signal using one or more stages of metamaterials to multiplex or demultiplex wavelengths of optical signals. The optical device may be an example of a stacked design with two or more stages of metamaterials stacked on top of one another. The optical device may be an example of a folded design that reflects optical signals between different stages of metamaterials.

Wavelength multiplexer/demultiplexer using metamaterials for optical fiber communications

An optical device comprises a metasurface including a plurality of nanostructures. The nanostructures convert an input light of an arbitrary spin state into an output light of an arbitrary total angular momentum state characterized by a superposition of two independent orbital angular momentum (OAM) states.

Spin-to-orbital angular momentum converter for light

An optical metasurface film includes a flexible polymeric film having a first major surface, a patterned polymer layer having a first surface proximate to the first major surface of the flexible polymeric film and having a second nanostructured surface opposite the first surface, and a refractive index contrast layer adjacent to the nanostructured surface of the patterned polymer layer forming a nanostructured bilayer with a nanostructured interface. The nanostructured bilayer acts locally on amplitude, phase, or polarization of light, or a combination thereof and imparts a light phase shift that varies as a function of position of the nano structured bilayer on the flexible polymeric film. The light phase shift of the nanostructured bilayer defines a predetermined operative phase profile of the optical metasurface film.

Optical metasurface films

Polarization-insensitive metasurfaces using anisotropic nanostructures are disclosed. These anisotropic structures allow for an accurate implementation of phase, group delay, and group delay dispersion, while simultaneously making it possible to realize a polarizationinsensitive, diffraction-limited and achromatic metalens for wavelength, e.g., λ=from about 460 nm to about 700 nm. The approach of polarization-insensitivity can be also applied for other metasurface devices with applications in, e.g., imaging and virtual or augmented reality.

Broadband achromatic polarization-insensitive metalens with anisotropic nanostructures

An optical system, comprising: (i) multiple input optical fibers; (ii) an optical mode multiplexer/demultiplexer coupled to said input optical fibers with, said optical mode multiplexer/demultiplexer comprising a plurality of metamaterial structures having length and forming at least one stage of metamaterials, the at least one stage of metamaterials is being situated on a surface of the optical mode multiplexer/demultiplexer facing the input optical fibers, and the at least one stage of metamaterials is oriented at angles between 60 and 120 degrees relative to the axis of the input fibers; and the metasurfaces are structured to receive a first optical signal having a first mode from at least one of said multiple input optical fibers and convert the first mode to a different mode.

Mode multiplexer/demultiplexer using metamaterials for optical communication system, and optical communication

An optical component comprises a metasurface comprising nanoscale elements. The metasurface is configured to receive incident light and to generate optical outputs. The geometries and/or orientations of the nanoscale elements provide a first optical output upon receiving a polarized incident light with a first polarization, and provide a second optical output upon receiving a polarized incident light with a second polarization that is different from the first polarization.

Arbitrary polarization-switchable metasurfaces

An optical component includes a substrate and a metasurface comprising one or more linearly birefringent elements. The linearly birefringent elements define a grating configured to implement parallel polarization analysis for a plurality of polarization orders for incident light of an arbitrary polarization.

Systems and methods for parallel polarization analysis

Multi-wavelength light is directed to an optic including a substrate and metasurface optical components deposited on a surface of the substrate. The metasurface optical components comprise a pattern of silicon dielectric resonators with nonperiodic gap distances between adjacent dielectric resonators. Incident light directed to the metasurface optical components is scattered and phase-shifted by the configuration of the gap distances and the widths and thicknesses of the dielectric resonators. Each dielectric resonator has a rectangular cross-section such that a first phase shift is imparted for a transverse-electric (TE) component of the incident light and a second phase shift is imparted for a transverse-magnetic (TM) component of the incident light.

Metasurface optical components for altering incident light

A display system includes an optical device configured according to constructive interference for a plurality of wavelengths at a focal length. The display system includes a fiber. The display system includes a controller configured to scan the fiber using a Lissajous scanning method to generate a display. The display can be disposed within a focal plane of the optical device. The controller is configured to modulate light intensity from the fiber. The controller can be configured to form a display image that passes through the optical device. The display system can include an optical combiner configured to reflect the display image from the optical device and form a virtual image. The optical device can be configured to magnify a display image from the display and form a virtual image.

Meta-optics for virtual reality and augmented reality systems

An optical device for aberration correction (e.g., chromatic aberration correction) is disclosed. The optical device includes an optical component (e.g., a spherical lens) and a metasurface optically coupled to the optical component. The metasurface includes a plurality of nanostructures that define a phase profile. The phase profile corrects an aberration (e.g., chromatic aberration) caused by the optical component. The resulting optical device becomes diffraction-limited (e.g., for the visible spectrum) with the metasurface.

Aberration correctors based on dispersion-engineered metasurfaces

Disclosed is a laser system including a first laser and a second laser. The first laser includes a laser cavity, and a gas phase molecular gain medium disposed in the laser cavity, the gain medium having an absorption band. The second laser is a solid state laser configured to be continuously tunable, with respect to an emission wavelength of the second laser, over the absorption band of the gain medium, and the second laser is tuned to pump rotational vibrational transitions in the gain medium to achieve a rotational population inversion.

Widely tunable compact terahertz gas lasers

Growing community of inventors

Cambridge, MA, United States of America

Federico Capasso