Patents by Inventor Martial Duchamp

Martial Duchamp 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).

  • Tunable charged particle vortex beam generator and method
    Patent number: 10607804
    Abstract: The present invention refers to a device for generating charged particle beams with tunable orbital angular momentum. The device firstly includes one or more components for providing a charged particle beam. It is further characterized by an electrical arrangement for imparting a tunable orbital angular momentum to the charged particle beam during operation. The orbital angular momentum of the produced charged particle vortex beam is tunable by adjusting the amount of electrical current. The chirality of the produced charged particle vortex beam is switchable by reversing the direction of the electrical current. The generation of the charged particle vortex beam from the present invention does not depend on the energy of the charged particle beams. The generation of the charged particle vortex beams from the present invention is predictable and reproducible.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: March 31, 2020
    Assignee: Forschungszentrum Jülich GmbH
    Inventors: Amir Tavabi, Penghan Lu, Martial Duchamp, Rafal Edward Dunin-Borkowski, Giulio Pozzi
  • TUNABLE CHARGED PARTICLE VORTEX BEAM GENERATOR AND METHOD
    Publication number: 20190259561
    Abstract: The present invention refers to a device for generating charged particle beams with tunable orbital angular momentum. The device firstly includes one or more components for providing a charged particle beam. It is further characterized by an electrical arrangement for imparting a tunable orbital angular momentum to the charged particle beam during operation. The orbital angular momentum of the produced charged particle vortex beam is tunable by adjusting the amount of electrical current. The chirality of the produced charged particle vortex beam is switchable by reversing the direction of the electrical current. The generation of the charged particle vortex beam from the present invention does not depend on the energy of the charged particle beams. The generation of the charged particle vortex beams from the present invention is predictable and reproducible.
    Type: Application
    Filed: September 7, 2016
    Publication date: August 22, 2019
    Inventors: Amir Tavabi, Penghan Lu, Martial Duchamp, Rafal Edward Dunin-Borkowski, Giulio Pozzi