Patents by Inventor Sonia Edith Letant

Sonia Edith Letant 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).

  • Patent number: 9279894
    Abstract: In one embodiment, a neutron detector includes a three dimensional matrix, having nanocomposite materials and a substantially transparent film material for suspending the nanocomposite materials, a detector coupled to the three dimensional matrix adapted for detecting a change in the nanocomposite materials, and an analyzer coupled to the detector adapted for analyzing the change detected by the detector. In another embodiment, a method for detecting neutrons includes receiving radiation from a source, converting neutrons in the radiation into alpha particles using converter material, converting the alpha particles into photons using quantum dot emitters, detecting the photons, and analyzing the photons to determine neutrons in the radiation.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: March 8, 2016
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Sonia Edith Létant, Tzu-Fang Wang
  • Patent number: 8947657
    Abstract: Isolation of biological or chemical organisms can be accomplished using a surface enhanced Raman scattering (SERS) system. The SERS system can be a single or a stacked plurality of photonic crystal membranes with noble-metal lined through pores for flowing analyte potentially containing the biological or chemical organisms. The through pores can be adapted to trap individual biological or chemical organisms and emit SERS spectra, which can then be detected by a detector and further analyzed for viability of the biological or chemical organism.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: February 3, 2015
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Sonia Edith Letant, Sarah Elyse Baker, Tiziana Bond, Allan Shih-Ping Chang
  • Publication number: 20120199747
    Abstract: In one embodiment, a neutron detector includes a three dimensional matrix, having nanocomposite materials and a substantially transparent film material for suspending the nanocomposite materials, a detector coupled to the three dimensional matrix adapted for detecting a change in the nanocomposite materials, and an analyzer coupled to the detector adapted for analyzing the change detected by the detector. In another embodiment, a method for detecting neutrons includes receiving radiation from a source, converting neutrons in the radiation into alpha particles using converter material, converting the alpha particles into photons using quantum dot emitters, detecting the photons, and analyzing the photons to determine neutrons in the radiation.
    Type: Application
    Filed: February 9, 2011
    Publication date: August 9, 2012
    Applicant: Lawrence Livermore National Security, LLC.
    Inventors: Sonia Edith Létant, Tzu-Fang Wang
  • Publication number: 20120078523
    Abstract: Isolation of biological or chemical organisms can be accomplished using a surface enhanced Raman scattering (SERS) system. The SERS system can be a single or a stacked plurality of photonic crystal membranes with noble-metal lined through pores for flowing analyte potentially containing the biological or chemical organisms. The through pores can be adapted to trap individual biological or chemical organisms and emit SERS spectra, which can then be detected by a detector and further analyzed for viability of the biological or chemical organism.
    Type: Application
    Filed: May 26, 2011
    Publication date: March 29, 2012
    Inventors: Sonia Edith Létant, Sarah Elyse Baker, Tiziana Bond, Allan Shih-Ping Chang