The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 12, 2025
Filed:
Apr. 28, 2021
Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;
Centre National DE LA Recherche Scientifique, Paris, FR;
Universite Paris-saclay, Gif-sur-Yvette, FR;
Daniel Comparat, Paris, FR;
Nicholas Barrett, Gif sur Yvette, FR;
Lionel Amiaud, Palaiseau, FR;
Yan Picard, Breuillet, FR;
Anne Lafosse, Paris, FR;
Raphaël Hahn, Orsay, FR;
Olena Fedchenko, Mainz, FR;
Gerd Schoenhense, Mainz, DE;
COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, Paris, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
UNIVERSITE PARIS-SACLAY, Gif-sur-Yvette, FR;
Abstract
A system for performing surface analysis on a material, includes a pulsed electron source that forms a monochromatic beam of incident electrons; means for conveying the incident electrons to the surface of a sample of material, so as to form backscattered electrons, and the backscattered electrons to detecting means, the conveying means comprising at least one electron optical system; means for detecting the backscattered electrons; the pulsed electron source comprising: a source of atoms; a continuous-wave laser beam configured to form a laser excitation zone able to excite the atoms to Rydberg states; a pulsed electric field on either side of the laser excitation zone, the pulsed electric field being configured to ionize at least the excited atoms and to form a monochromatic beam of electrons.