University of Utah Research Foundation

Massachusetts Institute of Technology

Bar-ilan University

Rajesh Menon

Henry Ignatius Smith

Dario Gil

George Barbastathis

David J Carter

Ganghun Kim

Peng Wang

Zeev Zalevsky

Kyle Jeffrey Isaacson

Apratim Majumder

Francesco Stellacci

Trisha L Andrew

James Gregory Goodberlet

Jeffrey Todd Hastings

Jordan Gerton

Amihai Meiri

Arkady Rudnitsky

Jose Dominguez-Caballero

Paul Rogge

Carl Ebeling

Hsin-Yu Tsai

Monjurul Feeroz Meem

Nicole Brimhall

Fernando Guevara Vasquez

Precious Cantu

A Broadband Diffractive-Optical Element (BDOE) as a lens whose f-number and numerical aperture are decoupled. The BDOE can include a substrate and an array of optical cells formed on the substrate to have a non-linear arrangement of cell heights to diffract light into a focal spot. The geometry of the focal spot can be designed to decouple the f-number from the numerical aperture for an imaging device that employs the broadband diffractive optical element as a lens.

Broadband diffractive optical element

A multi-modal imaging device can include a sensor array, a metamaterial filter, and a memory unit. The sensor array can be any suitable sensor which detects incoming light and is capable of recording a received image. The metamaterial filter can be oriented adjacent the sensor array and can be patterned with pixels having varied physical heights designed to diffract an incoming image to produce an engineered response which is sensitive to 2D spatial coordinates (x, y), time (t), and at least one of depth spatial coordinate (z), spectrum (λ), and degree of polarization ({right arrow over (S)}). The memory unit can include instructions that, when executed by a processor, reconstruct the engineered response to produce a reconstructed image which includes the 2D spatial coordinates and at least one of z, λ, and {right arrow over (S)}.

Multi-modal computational imaging via metasurfaces

Technology is described for methods and systems for imaging an object (). The method can include an image sensor () exposed to light () from an object () without passing the light through an image modification element. Light intensity of the light () can be stored as data in a medium. The image data can be analyzed at a processor () as a reconstructed image of the object ().

Lensless imaging device

Technology is described for methods and systems for a diffractive optic device () for holographic projection. The diffractive optic device can include a lens () configured to convey a hologram. The lens () further comprises a patterned material () formed with an array of cells having a non-planar arrangement of cell heights extending from a surface of the patterned material. The lens further optionally comprises a filling material () to fill gaps on both surfaces of the patterned material.

Diffractive optic for holographic projection

An imaging system that is translucent can be achieved by placing an image sensor () at one of more edges or periphery of a translucent window (). A small fraction of light from the outside scene scatters off imperfections () in the translucent window () and reach the peripheral image sensor (). Based on appropriate calibration of the response of point sources () from the outside scene, the full scene can be reconstructed computationally from the peripherally scattered light (). The technique can be extended to color, multi-spectral, light-field, 3D, and polarization selective imaging. Applications can include surveillance, imaging for autonomous agents, microscopy, etc.

Translucent imaging systems and related methods

An image capturing device () can include a sensor array (), a lens () positioned at a first distance from an intermediate image (), and apolychromat () positioned at a second distance from the lens (). The polychromat () can diffract the intermediate image () according to a transform function () to produce a dispersed sensor image () onto the sensor array (). The dispersed sensor image () can represent a spatial code of the intermediate image ().

Imaging device with image dispersing to create a spatially coded image

Metamaterial optical modulators can include one or more optical inputs, one or more optical outputs, one or more control inputs and an arrangement of a plurality of elements. The plurality of elements can include one or more variable state elements. The plurality of elements as arranged can be configured to modulate one or more properties of light passing through the metamaterial optical modulator via a change in a state of the one or more variable state elements based on one or more control signals received at the one or more control inputs.

Photonic modulator structures and methods of manufacture

A microscopy system which includes a light source for illuminating a sample; an objective lens for capturing light emitted from the illuminated sample to form a signal beam; and a dispersive optical element through which the signal beam is directed, wherein the dispersive optical element converts the signal beam to a spatially coherent signal beam.

Coherent fluorescence super-resolution microscopy

A system for surface patterning using a three dimensional holographic mask includes a light source configured to emit a light beam toward the holographic mask. The holographic mask can be formed as a topographical pattern on a transparent mask substrate. A semiconductor substrate can be positioned on an opposite site of the holographic mask as the light source and can be spaced apart from the holographic mask. The system can also include a base for supporting the semiconductor substrate.

Methods and systems for generating a three-dimensional holographic mask having topographical pattern with more than two discrete levels

An imaging system can include an optical fiber and a light source for providing optical stimulation to a region of interest along the optical fiber. A camera can capture emission such as fluorescence resulting from the optical stimulation. A cannula configured for implantation into a subject can be configured to direct the emission from the subject. A mating sleeve coupling the cannula to the optical fiber, and configured to support the camera, can include a dichroic mirror to allow the optical stimulation to pass from the optical fiber to the cannula and to redirect the emission from the cannula to the camera.

Computational microscopy through a cannula

A spectral distribution of incident light can be determined to increase collected spectral information. The spectral distribution of the incident light can be represented as a sum of spectral components after the incident light passes through a spectrum selective element. A signal at each color pixel of the spectrum selective element can be determined using, in part, the sum of the spectral components, where the spectral components are represented by a set of preliminary values. An error associated with the signal at each color pixel of the spectrum selective element is calculated. One or more perturbations are performed on each of the preliminary values and the error associated with the signal at each color pixel of the spectrum selective element is recalculated. The perturbations on each of the preliminary values is repeated until the error stabilizes within a predetermined range in order to assign the stabilized preliminary values as the spectral components in the incident light.

Extraction of spectral information

A display backlight can include a light source and a parabolic waveguide. The parabolic waveguide can have a light inlet to receive the light from the light source, a parabolic reflective surface adapted to change a direction of the light emitted from the light source by a predetermined angle, and a light outlet configured to emit the light at the predetermined angle.

Display backlight

A multi-spectral imaging (MSI) device can include an imaging plane and a diffractive optic. The imaging plane can include at least two groups of pixels an array of pixels for sensing at least two spectral bands. The at least two spectral bands can include a first spectral band and a second spectral band. The diffractive optic can be configured for diffracting an electromagnetic wave into the at least two spectral bands and focusing each spectral band component of the electromagnetic wave onto the group of pixels for the spectral band to generate an image.

Multi-spectral imaging with diffractive optics

A method for sub-diffraction-limited patterning using a photoswitchable layer is disclosed. A sample of the photoswitchable layer can be selectively exposed to a first wavelength of illumination that includes a super-oscillatory peak. The sample can be selectively exposed to a second wavelength of illumination that does not include the super-oscillatory peak. A region in the sample that corresponds to the super-oscillatory peak and is associated with the second transition state can optionally be converted into a third transition state. The region in the sample at the third transition state can constitute a pattern of an isolated feature with a size that is substantially smaller than a far-field diffraction limit.

Growing community of inventors

Salt Lake City, UT, United States of America

Rajesh Menon