Patents by Inventor Jonathan HOUARD

Jonathan HOUARD 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).

  • Tomographic atom probe with terahertz pulse generator
    Patent number: 12620551
    Abstract: A tomographic atom probe includes an analysis chamber intended to analyze a sample of material in the form of a nanotip mounted on an anti-vibration support, the nanotip being brought to a temperature of between 0 kelvin and ambient temperature, the nanotip being biased at an adjustable voltage of between 1 kV and 15 kV, the analysis chamber comprising a position-sensitive and time of flight-sensitive ion detector. The atom probe comprises a generator for generating high-peak-intensity single-cycle ultrashort terahertz pulses, the analysis chamber comprising optical means for focusing the terahertz pulses, the focusing of the terahertz pulses causing the atoms of the nanotip to evaporate through the field effect without thermal effects. The terahertz pulses are generated by a femtosecond pulsed laser emitting very high-power ultrashort optical pulses at a high rate.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: May 5, 2026
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE ROUEN, UNIVERSITE DE ROUEN NORMANDIE
    Inventors: Angela Vella, Jonathan Houard, Ammar Hideur, Laurent Arnoldi, Lorenzo Rigutti
  • TOMOGRAPHIC ATOM PROBE WITH TERAHERTZ PULSE GENERATOR
    Publication number: 20220254601
    Abstract: A tomographic atom probe includes an analysis chamber intended to analyze a sample of material in the form of a nanotip mounted on an anti-vibration support, the nanotip being brought to a temperature of between 0 kelvin and ambient temperature, the nanotip being biased at an adjustable voltage of between 1 kV and 15 kV, the analysis chamber comprising a position-sensitive and time of flight-sensitive ion detector. The atom probe comprises a generator for generating high-peak-intensity single-cycle ultrashort terahertz pulses, the analysis chamber comprising optical means for focusing the terahertz pulses, the focusing of the terahertz pulses causing the atoms of the nanotip to evaporate through the field effect without thermal effects. The terahertz pulses are generated by a femtosecond pulsed laser emitting very high-power ultrashort optical pulses at a high rate.
    Type: Application
    Filed: July 23, 2020
    Publication date: August 11, 2022
    Inventors: Angela VELLA, Jonathan HOUARD, Ammar HIDEUR, Laurent ARNOLDI, Lorenzo RIGUTTI