Patents by Inventor Esther López Estrada

Esther López Estrada 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).

  • Capacitive infrared photodetector comprising a quantum dot layer
    Patent number: 10483417
    Abstract: A semiconductor device that utilizes intraband photon absorption in quantum dots to provide a capacitive photodetector. The presence of the quantum dots creates confined energy states within the photodetector device. Electrons are trapped in these confined energy states. When the photodetector is illuminated by light having an appropriate photon energy, the stored electrons are released to the conduction band, causing a change in the capacitance of the photodetector. By measuring this change in capacitance, light incident on the photodetector can be detected and quantified.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: November 19, 2019
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Michael K. Yakes, María González, Phillip Jenkins, Robert J. Walters, Antonio Marti Vega, Elisa Antolín Fernández, Esther López Estrada
  • Capacitive Infrared Photodetector
    Publication number: 20180248058
    Abstract: A semiconductor device that utilizes intraband photon absorption in quantum dots to provide a capacitive photodetector. The presence of the quantum dots creates confined energy states within the photodetector device. Electrons are trapped in these confined energy states. When the photodetector is illuminated by light having an appropriate photon energy, the stored electrons are released to the conduction band, causing a change in the capacitance of the photodetector. By measuring this change in capacitance, light incident on the photodetector can be detected and quantified.
    Type: Application
    Filed: February 23, 2018
    Publication date: August 30, 2018
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Michael K. Yakes, María González, Phillip Jenkins, Robert J. Walters, Antonio Marti Vega, Elisa Antolín Fernández, Esther López Estrada