Patents by Inventor Sophie Brasselet

Sophie Brasselet 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).

  • Devices and methods for the characterization of the 3D orientation of light emitting dipoles
    Patent number: 11927737
    Abstract: The disclosure may relate to a method for the characterization of the 3D orientation of an emitting dipole within a specimen. The method comprises splitting a light beam emitted by the emitting dipole and exiting an objective lens into a first and a second beams; spatially filtering said first beam by using a spatial frequency filter; splitting each of said filtered first beam and said second beam into two beams linearly polarized using polarizing beam splitters; detecting with an optical detection unit four beams linearly polarized in a detection plane optically conjugated with the front focal plane of said microscope objective lens; determining, from four intensity images, in a predefined frame of the specimen, the mean orientation and the angular aperture of the distribution of the 3D orientation of the emitting dipole, during an acquisition time of said four intensity images.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: March 12, 2024
    Assignees: Université d'Aix-Marseille, Centre National de la Recherche Scientifique, CENTRALE MARSEILLE
    Inventors: Sophie Brasselet, Valentina Curcio
  • DEVICES AND METHODS FOR THE CHARACTERIZATION OF THE 3D ORIENTATION OF LIGHT EMITTING DIPOLES
    Publication number: 20220365330
    Abstract: The disclosure may relate to a method for the characterization of the 3D orientation of an emitting dipole within a specimen. The method comprises splitting a light beam emitted by the emitting dipole and exiting an objective lens into a first and a second beams; spatially filtering said first beam by using a spatial frequency filter; splitting each of said filtered first beam and said second beam into two beams linearly polarized using polarizing beam splitters; detecting with an optical detection unit four beams linearly polarized in a detection plane optically conjugated with the front focal plane of said microscope objective lens; determining, from four intensity images, in a predefined frame of the specimen, the mean orientation and the angular aperture of the distribution of the 3D orientation of the emitting dipole, during an acquisition time of said four intensity images.
    Type: Application
    Filed: September 28, 2020
    Publication date: November 17, 2022
    Applicants: Université d'Aix-Marseille, Centre National de la Recherche Scientifique, CENTRALE MARSEILLE
    Inventors: Sophie Brasselet, Valentina Curcio
  • Method for photographic recording of at least a linear and/or non-linear optical property a structure comprising at least a photosensitive molecular material
    Patent number: 6884549
    Abstract: The invention concerns a method for photographic recording a spatial distribution of linear and/or non-linear optical properties in a polymer material which consists in irradiating the material to modify the orientation of its molecules. The irradiation direction is perpendicular or oblique relative to the propagation direction(s) of the scanning beams.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: April 26, 2005
    Assignee: France Telecom
    Inventors: Jôseph Zyss, Sophie Brasselet, Eric Toussaere