Patents by Inventor António José ABRANTES GUEDES DA FONSECA PEREIRA

António José ABRANTES GUEDES DA FONSECA PEREIRA 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).

  • Device for improving performance in STED and RESOLFT microscopy using a single phase mask
    Patent number: 11487098
    Abstract: The present invention refers to a method for high spatial resolution imaging comprising a phase plate or a spatial light modulator (SLM) device for STimulated Emission Depletion (STED) microscopy and Reversible Saturable OpticaL Fluorescence Transitions (RESOLFT) microscopy, where a bivortex pattern is imprinted on the said phase plate or SLM to generate a beam. The bivortex pattern allows some freedom in shaping the STED beam to improve the microscope's axial performance and optical sectioning capacity. The present invention further refers to a method for STED and RESOLFT microscopy comprising the step of modulating the optical phase of a laser using a phase plate or a spatial light modulator device with a phase mask comprising a bivortex with a tunable radius.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: November 1, 2022
    Assignee: IBMC—INSTITUTO DE BIOLOGIA MOLECULAR E CELULAR
    Inventor: António José Abrantes Guedes Da Fonseca Pereira
  • DEVICE FOR IMPROVING PERFORMANCE IN STED AND RESOLFT MICROSCOPY USING A SINGLE PHASE MASK
    Publication number: 20210208379
    Abstract: The present invention refers to a method for high spatial resolution imaging comprising a phase plate or a spatial light modulator (SLM) device for STimulated Emission Depletion (STED) microscopy and Reversible Saturable OpticaL Fluorescence Transitions (RESOLFT) microscopy, where a bivortex pattern is imprinted on the said phase plate or SLM to generate a beam. The bivortex pattern allows some freedom in shaping the STED beam to improve the microscope's axial performance and optical sectioning capacity. The present invention further refers to a method for STED and RESOLFT microscopy comprising the step of modulating the optical phase of a laser using a phase plate or a spatial light modulator device with a phase mask comprising a bivortex with a tunable radius.
    Type: Application
    Filed: May 17, 2019
    Publication date: July 8, 2021
    Applicant: IBMC - INSTITUTO DE BIOLOGIA MOLECULAR E CELULAR
    Inventor: António José ABRANTES GUEDES DA FONSECA PEREIRA