Patents by Inventor Ivan VOZNYUK

Ivan VOZNYUK has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220146710
    Abstract: A method for manufacturing an optical metasurface is configured to operate in a given working spectral band. The method comprises: obtaining a 2D array of patterns, each comprising one or more nanostructures forming dielectric elements that are resonant in said working spectral band, said nanostructures being formed in at least one photosensitive dielectric medium; exposing said 2D array to a writing electromagnetic wave having at least one wavelength in said photosensitivity spectral band, said writing wave having a spatial energy distribution in a plane of the 2D array that is a function of an intended phase profile, so that each pattern of the 2D array produces on an incident electromagnetic wave having a wavelength in the working spectral band, a phase variation corresponding to a refractive index variation experienced by said pattern during said exposure.
    Type: Application
    Filed: February 14, 2020
    Publication date: May 12, 2022
    Applicants: Université D'Aix-Marseille, Centre National de la Recherche Scientifique, Ecole Centrale de Marseille, Multiwave Innovation
    Inventors: Elena Mikheeva, Redha Abdeddaim, Stefan Enoch, Julien Lumeau, Ivan Voznyuk, Tryfon Antonakakis
  • Publication number: 20170082975
    Abstract: The invention describes a device allowing the observation of a sample, comprising particles, for example biological particles, by lensless imaging. The sample is disposed against a substrate, the substrate being interposed between a light source and an image sensor. The substrate comprises at least one thin film, extending across a thin film plane, structured so as to form a diffraction grating, designed to confine a part of a light wave emitted by the light source, in a plane parallel to said thin film plane. The device does not comprise magnification optics between the substrate and the image sensor.
    Type: Application
    Filed: September 23, 2016
    Publication date: March 23, 2017
    Applicant: Commissariat A L'Energie Atomique et aux Energies Alternatives
    Inventors: Alain GLIERE, Salim BOUTAMI, Alexei TCHELNOKOV, Ivan VOZNYUK, Cedric ALLIER